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CVE-2026-55588 (GCVE-0-2026-55588)

Vulnerability from cvelistv5

Published

2026-08-25 20:32

Modified

2026-08-27 14:35

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-674 - Uncontrolled Recursion
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Summary

ORAS (OCI Registry As Storage) is a CLI and library for managing artifacts in OCI registries. In ORAS CLI versions up to and including 1.3.2, the recursive referrer traversal does not track visited descriptors, so a malicious OCI registry that returns a cyclic referrer graph causes unbounded recursion and memory growth. This affects oras discover, whose recursive traversal is enabled by default because the --depth option defaults to 0 (unlimited), as well as the recursive referrer counting used by the oras backup and oras restore workflows. A cyclic graph can be as simple as A referring to B and B referring back to A. A malicious registry can use this to cause a client-side denial of service, exhausting CPU and memory and hanging automation or CI/CD pipelines that run ORAS against untrusted registry metadata. The vulnerability does not extend to code execution, artifact substitution, or integrity bypass. This issue has been fixed in version 1.3.3.

References

URL

Tags

	https://github.com/oras-project/oras/security/advisories/GHSA-298f-872v-2rcx	x_refsource_CONFIRM
	https://github.com/oras-project/oras/commit/440eb65d07a0631f131944d28e7c29d562ec17f3	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	oras-project	oras	Version: < 1.3.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-55588",
                "options": [
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                  },
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                  },
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                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-08-27T13:52:54.479182Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
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          "vendor": "oras-project",
          "versions": [
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              "version": "\u003c 1.3.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ORAS (OCI Registry As Storage) is a CLI and library for managing artifacts in OCI registries. In ORAS CLI versions up to and including 1.3.2, the recursive referrer traversal does not track visited descriptors, so a malicious OCI registry that returns a cyclic referrer graph causes unbounded recursion and memory growth. This affects oras discover, whose recursive traversal is enabled by default because the --depth option defaults to 0 (unlimited), as well as the recursive referrer counting used by the oras backup and oras restore workflows. A cyclic graph can be as simple as A referring to B and B referring back to A. A malicious registry can use this to cause a client-side denial of service, exhausting CPU and memory and hanging automation or CI/CD pipelines that run ORAS against untrusted registry metadata. The vulnerability does not extend to code execution, artifact substitution, or integrity bypass. This issue has been fixed in version 1.3.3."
        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
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              "description": "CWE-674: Uncontrolled Recursion",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
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        "dateUpdated": "2026-08-25T20:32:18.677Z",
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          ],
          "url": "https://github.com/oras-project/oras/security/advisories/GHSA-298f-872v-2rcx"
        },
        {
          "name": "https://github.com/oras-project/oras/commit/440eb65d07a0631f131944d28e7c29d562ec17f3",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/oras-project/oras/commit/440eb65d07a0631f131944d28e7c29d562ec17f3"
        }
      ],
      "source": {
        "advisory": "GHSA-298f-872v-2rcx",
        "discovery": "UNKNOWN"
      },
      "title": "ORAS CLI: Cyclic Referrer Graph Can Cause Unbounded Recursion and Resource Consumption"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "dateUpdated": "2026-08-27T14:35:19.147Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-50151 (GCVE-0-2026-50151)

Vulnerability from cvelistv5

Published

2026-07-17 19:41

Modified

2026-07-20 13:52

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, registry/remote/repository.go in blobStore.completePushAfterInitialPost follows a registry-controlled Location header during monolithic blob upload and reuses the Authorization header from the initial POST request for the subsequent PUT request, allowing a malicious registry to return a cross-host Location and receive the caller's credentials at an attacker-controlled endpoint. This issue is fixed in version 2.6.1.

References

URL

Tags

	https://github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7	x_refsource_CONFIRM
	https://github.com/oras-project/oras-go/pull/1152	x_refsource_MISC
	https://github.com/oras-project/oras-go/commit/4683c46ef078091544f5f55fd25102f002806991	x_refsource_MISC
	https://github.com/oras-project/oras-go/releases/tag/v2.6.1	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	oras-project	oras-go	Version: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-50151",
                "options": [
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-20T13:52:00.588088Z",
                "version": "2.0.3"
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            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-20T13:52:07.476Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "vendor": "oras-project",
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              "version": "\u003c 2.6.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, registry/remote/repository.go in blobStore.completePushAfterInitialPost follows a registry-controlled Location header during monolithic blob upload and reuses the Authorization header from the initial POST request for the subsequent PUT request, allowing a malicious registry to return a cross-host Location and receive the caller\u0027s credentials at an attacker-controlled endpoint. This issue is fixed in version 2.6.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
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          }
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      ],
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              "type": "CWE"
            }
          ]
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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        {
          "name": "https://github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7"
        },
        {
          "name": "https://github.com/oras-project/oras-go/pull/1152",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/pull/1152"
        },
        {
          "name": "https://github.com/oras-project/oras-go/commit/4683c46ef078091544f5f55fd25102f002806991",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/commit/4683c46ef078091544f5f55fd25102f002806991"
        },
        {
          "name": "https://github.com/oras-project/oras-go/releases/tag/v2.6.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/releases/tag/v2.6.1"
        }
      ],
      "source": {
        "advisory": "GHSA-jxpm-75mh-9fp7",
        "discovery": "UNKNOWN"
      },
      "title": "oras-go: credential forwarding via unvalidated Location header in blob upload"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-50151",
    "datePublished": "2026-07-17T19:41:11.648Z",
    "dateReserved": "2026-06-03T20:54:20.431Z",
    "dateUpdated": "2026-07-20T13:52:07.476Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-50162 (GCVE-0-2026-50162)

Vulnerability from cvelistv5

Published

2026-07-17 19:39

Modified

2026-07-20 18:18

Severity ?

6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CWE

CWE-73 - External Control of File Name or Path

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, resolveWritePath() in content/file/file.go uses a lexical filepath.Rel check for workingDir and does not account for symlink traversal, so when AllowPathTraversalOnWrite=false an attacker-controlled blob title through ocispec.AnnotationTitle such as out/pwn.txt can follow a workingDir symlink out -> /some/outside/dir and cause pushFile() to create /some/outside/dir/pwn.txt outside workingDir. This issue is fixed in version 2.6.1.

References

URL

Tags

	https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv	x_refsource_CONFIRM
	https://github.com/oras-project/oras-go/commit/cc323e564d90c6b5b4bdd71d3c8d2ee2713b37e5	x_refsource_MISC
	https://github.com/oras-project/oras-go/releases/tag/v2.6.1	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	oras-project	oras-go	Version: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-50162",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-20T18:18:39.453595Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-20T18:18:44.172Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "oras-go",
          "vendor": "oras-project",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.6.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, resolveWritePath() in content/file/file.go uses a lexical filepath.Rel check for workingDir and does not account for symlink traversal, so when AllowPathTraversalOnWrite=false an attacker-controlled blob title through ocispec.AnnotationTitle such as out/pwn.txt can follow a workingDir symlink out -\u003e /some/outside/dir and cause pushFile() to create /some/outside/dir/pwn.txt outside workingDir. This issue is fixed in version 2.6.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
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            "version": "4.0",
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            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW"
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          "tags": [
            "x_refsource_MISC"
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      "source": {
        "advisory": "GHSA-8xwf-rjm4-xvhv",
        "discovery": "UNKNOWN"
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      "title": "oras-go: file store write outside workingDir via symlink traversal"
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    "dateUpdated": "2026-07-20T18:18:44.172Z",
    "state": "PUBLISHED"
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}

CVE-2026-50163 (GCVE-0-2026-50163)

Vulnerability from cvelistv5

Published

2026-07-17 19:36

Modified

2026-07-20 15:01

Severity ?

7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but returns the unresolved target, causing os.Link("victim.secret", "<extract_base>/payload.tar.gz/evil_cwd_link") to resolve header.Linkname against the process current working directory for a Typeflag=TypeLink entry such as Name=payload.tar.gz/evil_cwd_link and Linkname="victim.secret" with io.deis.oras.content.unpack: "true", which can expose or tamper with files such as .env, .git/config, .aws/credentials, and ~/.ssh/config. This issue is fixed in version 2.6.2.

References

URL

Tags

	https://github.com/oras-project/oras-go/security/advisories/GHSA-fxhp-mv3v-67qp	x_refsource_CONFIRM
	https://github.com/oras-project/oras-go/pull/1232	x_refsource_MISC
	https://github.com/oras-project/oras-go/commit/c463c654ab3ef34422c1764cd619806cebf20451	x_refsource_MISC
	https://github.com/oras-project/oras-go/releases/tag/v2.6.2	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	oras-project	oras-go	Version: < 2.6.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-50163",
                "options": [
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                    "Exploitation": "poc"
                  },
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-20T15:00:48.168210Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-20T15:01:16.630Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
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            ],
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          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "oras-go",
          "vendor": "oras-project",
          "versions": [
            {
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              "version": "\u003c 2.6.2"
            }
          ]
        }
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          "lang": "en",
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        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-17T19:36:01.254Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/oras-project/oras-go/security/advisories/GHSA-fxhp-mv3v-67qp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-fxhp-mv3v-67qp"
        },
        {
          "name": "https://github.com/oras-project/oras-go/pull/1232",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/pull/1232"
        },
        {
          "name": "https://github.com/oras-project/oras-go/commit/c463c654ab3ef34422c1764cd619806cebf20451",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/commit/c463c654ab3ef34422c1764cd619806cebf20451"
        },
        {
          "name": "https://github.com/oras-project/oras-go/releases/tag/v2.6.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/releases/tag/v2.6.2"
        }
      ],
      "source": {
        "advisory": "GHSA-fxhp-mv3v-67qp",
        "discovery": "UNKNOWN"
      },
      "title": "oras-go: Hardlink entry with relative Linkname escapes extract dir via process CWD resolution in `oras-go` tar extraction"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-50163",
    "datePublished": "2026-07-17T19:36:01.254Z",
    "dateReserved": "2026-06-03T20:54:20.432Z",
    "dateUpdated": "2026-07-20T15:01:16.630Z",
    "state": "PUBLISHED"
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CVE-2026-48978 (GCVE-0-2026-48978)

Vulnerability from cvelistv5

Published

2026-07-17 19:34

Modified

2026-07-21 02:06

Severity ?

2.1 (Low) - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CWE

CWE-918 - Server-Side Request Forgery (SSRF)
CWE-319 - Cleartext Transmission of Sensitive Information

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, auth.Client follows the realm URL from a registry's WWW-Authenticate: Bearer challenge without validating the scheme or host, allowing a malicious or compromised registry to cause SSRF to internal networks such as http://169.254.169.254/, http://10.0.0.x/, and http://127.0.0.1/, or to downgrade a registry contacted over https:// to an http:// token endpoint in registry/remote/auth/client.go through Client.Do(), Client.fetchBearerToken(), fetchDistributionToken, and fetchOAuth2Token. This issue is fixed in version 2.6.1.

References

URL

Tags

	https://github.com/oras-project/oras-go/security/advisories/GHSA-xf85-363p-868w	x_refsource_CONFIRM
	https://github.com/oras-project/oras-go/commit/7a9f4b0b9558821b0422152ebe21ae56930fe764	x_refsource_MISC
	https://github.com/oras-project/oras-go/releases/tag/v2.6.1	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	oras-project	oras-go	Version: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-48978",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-21T02:06:39.340086Z",
                "version": "2.0.3"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "oras-go",
          "vendor": "oras-project",
          "versions": [
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        {
          "lang": "en",
          "value": "oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, auth.Client follows the realm URL from a registry\u0027s WWW-Authenticate: Bearer challenge without validating the scheme or host, allowing a malicious or compromised registry to cause SSRF to internal networks such as http://169.254.169.254/, http://10.0.0.x/, and http://127.0.0.1/, or to downgrade a registry contacted over https:// to an http:// token endpoint in registry/remote/auth/client.go through Client.Do(), Client.fetchBearerToken(), fetchDistributionToken, and fetchOAuth2Token. This issue is fixed in version 2.6.1."
        }
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      "metrics": [
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          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
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            "baseScore": 2.1,
            "baseSeverity": "LOW",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "vulnAvailabilityImpact": "NONE",
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            "vulnIntegrityImpact": "NONE"
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        "discovery": "UNKNOWN"
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      "title": "oras-go: Malicious registry can hijack Bearer token realm to exfiltrate credentials and refresh tokens"
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}

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