Vulnerability-Lookup

GHSA-V8F2-2GHQ-9WHV

Vulnerability from github – Published: 2026-07-03 21:31 – Updated: 2026-07-03 21:31

Details

Gitea versions before 1.25.5 accept malformed or injected forwarded-proto values when detecting public URLs, allowing spoofed canonical URL generation.

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-27779"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-03T21:16:59Z",
    "severity": null
  },
  "details": "Gitea versions before 1.25.5 accept malformed or injected forwarded-proto values when detecting public URLs, allowing spoofed canonical URL generation.",
  "id": "GHSA-v8f2-2ghq-9whv",
  "modified": "2026-07-03T21:31:38Z",
  "published": "2026-07-03T21:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27779"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/pull/36810"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/pull/36836"
    },
    {
      "type": "WEB",
      "url": "https://blog.gitea.com/release-of-1.25.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/releases/tag/v1.25.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-27779 (GCVE-0-2026-27779)

Vulnerability from cvelistv5 – Published: 2026-07-03 20:19 – Updated: 2026-07-03 20:19

Title

Gitea forwarded-proto handling allows public URL spoofing

Summary

Gitea versions before 1.25.5 accept malformed or injected forwarded-proto values when detecting public URLs, allowing spoofed canonical URL generation.

Severity ?

No CVSS data available.

CWE

CWE-284

Assigner

Gitea

References

URL

Tags

	https://github.com/go-gitea/gitea/pull/36810	patch
	https://github.com/go-gitea/gitea/pull/36836	patch
	https://github.com/go-gitea/gitea/releases/tag/v1.25.5	release-notes
	https://blog.gitea.com/release-of-1.25.5/	release-notes

Impacted products

	Vendor	Product	Version
	Gitea	Gitea Open Source Git Server	Affected: 0 , < 1.25.5 (semver)

Credits

fed01k

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Gitea Open Source Git Server",
          "vendor": "Gitea",
          "versions": [
            {
              "lessThan": "1.25.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "fed01k"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Gitea versions before 1.25.5 accept malformed or injected forwarded-proto values when detecting public URLs, allowing spoofed canonical URL generation."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-03T20:19:37.622Z",
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea"
      },
      "references": [
        {
          "name": "GitHub Pull Request #36810",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/36810"
        },
        {
          "name": "GitHub Pull Request #36836",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/36836"
        },
        {
          "name": "Gitea v1.25.5 Release",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/go-gitea/gitea/releases/tag/v1.25.5"
        },
        {
          "name": "Gitea v1.25.5 Release Blog Post",
          "tags": [
            "release-notes"
          ],
          "url": "https://blog.gitea.com/release-of-1.25.5/"
        }
      ],
      "title": "Gitea forwarded-proto handling allows public URL spoofing",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
    "cveId": "CVE-2026-27779",
    "datePublished": "2026-07-03T20:19:37.622Z",
    "dateReserved": "2026-03-03T03:25:28.660Z",
    "dateUpdated": "2026-07-03T20:19:37.622Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-V8F2-2GHQ-9WHV

CVE-2026-27779 (GCVE-0-2026-27779)

Tags

Sightings

Nomenclature