CVE-2026-89430 (GCVE-0-2026-89430)
Vulnerability from cvelistv5
Published
2026-10-06 19:23
Modified
2026-10-07 20:16
CWE
  • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
Gitea validated a push mirror's remote address against the `[migrations]` allow and block lists only when the mirror was created. Each synchronization passed the stored address directly to `git push`, so a name that later resolved to a blocked or internal address was still reached. A user with administrator access to a repository, which includes repositories they create themselves, could aim push mirror synchronization at internal Git services and force-push the repository's contents to them.
Impacted products
Vendor Product Version
Gitea Gitea Version: 0   ≤ 1.27.3
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 8.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-89430",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T20:15:42.946496Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T20:16:04.169Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "gitea.dev",
          "product": "Gitea",
          "vendor": "Gitea",
          "versions": [
            {
              "lessThanOrEqual": "1.27.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/thesmartshadow"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/manus-use"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/cy3erm"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "https://github.com/TheFox0x7"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "https://github.com/silverwind"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "https://github.com/bircni"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "https://github.com/wxiaoguang"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Gitea validated a push mirror\u0027s remote address against the `[migrations]` allow and block lists only when the mirror was created. Each synchronization passed the stored address directly to `git push`, so a name that later resolved to a blocked or internal address was still reached. A user with administrator access to a repository, which includes repositories they create themselves, could aim push mirror synchronization at internal Git services and force-push the repository\u0027s contents to them."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T19:23:52.198Z",
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea"
      },
      "references": [
        {
          "name": "GitHub Security Advisory GHSA-hcgw-r9gf-8mph",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-hcgw-r9gf-8mph"
        },
        {
          "name": "Fix: go-gitea/gitea pull request #39010",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/39010"
        },
        {
          "name": "Fix: go-gitea/gitea pull request #39426",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/39426"
        },
        {
          "name": "Gitea 28.0.0 release announcement",
          "tags": [
            "release-notes"
          ],
          "url": "https://blog.gitea.com/release-of-28.0.0/"
        },
        {
          "name": "go-gitea/gitea v28.0.0 release",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/go-gitea/gitea/releases/tag/v28.0.0"
        }
      ],
      "title": "Gitea push mirror SSRF and forced writes to internal Git hosts"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
    "cveId": "CVE-2026-89430",
    "datePublished": "2026-10-06T19:23:52.198Z",
    "dateReserved": "2026-10-04T21:57:35.573Z",
    "dateUpdated": "2026-10-07T20:16:04.169Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"shortName\": \"Gitea\", \"dateUpdated\": \"2026-10-06T19:23:52.198Z\"}, \"title\": \"Gitea push mirror SSRF and forced writes to internal Git hosts\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"Gitea validated a push mirror\u0027s remote address against the `[migrations]` allow and block lists only when the mirror was created. Each synchronization passed the stored address directly to `git push`, so a name that later resolved to a blocked or internal address was still reached. A user with administrator access to a repository, which includes repositories they create themselves, could aim push mirror synchronization at internal Git services and force-push the repository\u0027s contents to them.\"}], \"affected\": [{\"vendor\": \"Gitea\", \"product\": \"Gitea\", \"packageName\": \"gitea.dev\", \"defaultStatus\": \"unaffected\", \"versions\": [{\"version\": \"0\", \"status\": \"affected\", \"lessThanOrEqual\": \"1.27.3\", \"versionType\": \"semver\"}]}], \"references\": [{\"url\": \"https://github.com/go-gitea/gitea/security/advisories/GHSA-hcgw-r9gf-8mph\", \"name\": \"GitHub Security Advisory GHSA-hcgw-r9gf-8mph\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://github.com/go-gitea/gitea/pull/39010\", \"name\": \"Fix: go-gitea/gitea pull request #39010\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/go-gitea/gitea/pull/39426\", \"name\": \"Fix: go-gitea/gitea pull request #39426\", \"tags\": [\"patch\"]}, {\"url\": \"https://blog.gitea.com/release-of-28.0.0/\", \"name\": \"Gitea 28.0.0 release announcement\", \"tags\": [\"release-notes\"]}, {\"url\": \"https://github.com/go-gitea/gitea/releases/tag/v28.0.0\", \"name\": \"go-gitea/gitea v28.0.0 release\", \"tags\": [\"release-notes\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-367\", \"description\": \"CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition\"}, {\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-918\", \"description\": \"CWE-918: Server-Side Request Forgery (SSRF)\"}]}], \"credits\": [{\"lang\": \"en\", \"value\": \"https://github.com/thesmartshadow\", \"type\": \"reporter\"}, {\"lang\": \"en\", \"value\": \"https://github.com/manus-use\", \"type\": \"reporter\"}, {\"lang\": \"en\", \"value\": \"https://github.com/cy3erm\", \"type\": \"reporter\"}, {\"lang\": \"en\", \"value\": \"https://github.com/TheFox0x7\", \"type\": \"remediation developer\"}, {\"lang\": \"en\", \"value\": \"https://github.com/silverwind\", \"type\": \"remediation developer\"}, {\"lang\": \"en\", \"value\": \"https://github.com/bircni\", \"type\": \"remediation developer\"}, {\"lang\": \"en\", \"value\": \"https://github.com/wxiaoguang\", \"type\": \"remediation developer\"}]}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-89430\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-07T20:15:42.946496Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-07T20:15:59.547Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-89430\", \"assignerOrgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Gitea\", \"dateReserved\": \"2026-10-04T21:57:35.573Z\", \"datePublished\": \"2026-10-06T19:23:52.198Z\", \"dateUpdated\": \"2026-10-07T20:16:04.169Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…