CVE-2026-104636 (GCVE-0-2026-104636)

Vulnerability from cvelistv5 – Published: 2026-10-06 19:24 – Updated: 2026-10-06 19:24
VLAI
Title
Gitea SSRF through Git HTTP redirects in mirrors and fetches
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.
Severity
No CVSS data available.
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version CPE status
Gitea Gitea Affected: 0 , ≤ 1.27.3 (semver)
guessed Create a notification for this product.
Credits
https://github.com/ihopenre-eng https://github.com/ElectQ https://github.com/TheFox0x7 https://github.com/silverwind https://github.com/bircni https://github.com/wxiaoguang
Show details on NVD website
To clipboard 

{
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        {
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          "product": "Gitea",
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              "versionType": "semver"
            }
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      ],
      "credits": [
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          "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"
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          "type": "remediation developer",
          "value": "https://github.com/silverwind"
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        {
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          "type": "remediation developer",
          "value": "https://github.com/bircni"
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          "value": "https://github.com/wxiaoguang"
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      ],
      "descriptions": [
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          "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"
            }
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      "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": [
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          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-g4hw-fg4c-89mq"
        },
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          "url": "https://github.com/go-gitea/gitea/releases/tag/v28.0.0"
        }
      ],
      "title": "Gitea SSRF through Git HTTP redirects in mirrors and fetches"
    }
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  "cveMetadata": {
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    "cveId": "CVE-2026-104636",
    "datePublished": "2026-10-06T19:24:45.427Z",
    "dateReserved": "2026-10-04T21:59:53.559Z",
    "dateUpdated": "2026-10-06T19:24:45.427Z",
    "state": "PUBLISHED"
  },
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        "cveTags": [],
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        ],
        "id": "CVE-2026-104636",
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        "metrics": {},
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        "references": [
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        "vulnStatus": "Awaiting Analysis",
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            ],
            "source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}



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