CVE-2026-104636 (GCVE-0-2026-104636)
Vulnerability from cvelistv5
Published
2026-10-06 19:24
Modified
2026-10-07 20:13
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository administrator using a policy-allowed endpoint that redirects could make Gitea's Git client send requests to an address that the outbound host policy would otherwise block. The impact depends on the configured policy and the internal services reachable from the server.
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": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-104636",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T20:13:39.303785Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T20:13:59.342Z",
          "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/ihopenre-eng"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/ElectQ"
        },
        {
          "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 the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository administrator using a policy-allowed endpoint that redirects could make Gitea\u0027s Git client send requests to an address that the outbound host policy would otherwise block. The impact depends on the configured policy and the internal services reachable from the server."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T19:24:45.427Z",
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea"
      },
      "references": [
        {
          "name": "GitHub Security Advisory GHSA-g4hw-fg4c-89mq",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-g4hw-fg4c-89mq"
        },
        {
          "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 SSRF through Git HTTP redirects in mirrors and fetches"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
    "cveId": "CVE-2026-104636",
    "datePublished": "2026-10-06T19:24:45.427Z",
    "dateReserved": "2026-10-04T21:59:53.559Z",
    "dateUpdated": "2026-10-07T20:13:59.342Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-104636\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-07T20:13:39.303785Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-07T20:13:55.348Z\"}}], \"cna\": {\"title\": \"Gitea SSRF through Git HTTP redirects in mirrors and fetches\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"https://github.com/ihopenre-eng\"}, {\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"https://github.com/ElectQ\"}, {\"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\"}], \"affected\": [{\"vendor\": \"Gitea\", \"product\": \"Gitea\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"1.27.3\"}], \"packageName\": \"gitea.dev\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/go-gitea/gitea/security/advisories/GHSA-g4hw-fg4c-89mq\", \"name\": \"GitHub Security Advisory GHSA-g4hw-fg4c-89mq\", \"tags\": [\"vendor-advisory\"]}, {\"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\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository administrator using a policy-allowed endpoint that redirects could make Gitea\u0027s Git client send requests to an address that the outbound host policy would otherwise block. The impact depends on the configured policy and the internal services reachable from the server.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-918\", \"description\": \"CWE-918: Server-Side Request Forgery (SSRF)\"}]}], \"providerMetadata\": {\"orgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"shortName\": \"Gitea\", \"dateUpdated\": \"2026-10-06T19:24:45.427Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-104636\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-07T20:13:59.342Z\", \"dateReserved\": \"2026-10-04T21:59:53.559Z\", \"assignerOrgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"datePublished\": \"2026-10-06T19:24:45.427Z\", \"assignerShortName\": \"Gitea\"}",
      "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…