CVE-2026-71184 (GCVE-0-2026-71184)

Vulnerability from cvelistv5 – Published: 2026-10-14 14:37 – Updated: 2026-10-15 03:56
VLAI
Title
Gitea fork workflow approval bypass through review events
Summary
Gitea's pull request review notifier does not attach the pull request to the Actions notification, so the fork workflow approval gate does not recognize the run as originating from a fork. Review comment and review approval or rejection events can consequently load workflow code from the fork head and run it on the base repository's runners without the required maintainer approval. This allows execution of fork-controlled workflow code across the intended approval boundary.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 00:00 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
Gitea CNA under the mitre root
CNA scorecard C 61/100 over 153 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Gitea Gitea Affected: 1.20.0 , ≤ 1.27.1 (semver)
guessed Create a notification for this product.
Show details on NVD website

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              "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:H",
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                "timestamp": "2026-10-14T00:00:00+00:00",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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              "versionType": "semver"
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          "value": "https://github.com/iabdullah215"
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          "type": "remediation developer",
          "value": "https://github.com/bircni"
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          "value": "Gitea\u0027s pull request review notifier does not attach the pull request to the Actions notification, so the fork workflow approval gate does not recognize the run as originating from a fork. Review comment and review approval or rejection events can consequently load workflow code from the fork head and run it on the base repository\u0027s runners without the required maintainer approval. This allows execution of fork-controlled workflow code across the intended approval boundary."
        }
      ],
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          "descriptions": [
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              "description": "CWE-863: Incorrect Authorization",
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          "name": "GitHub Security Advisory GHSA-7w2r-xwp6-mh6c",
          "tags": [
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          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-7w2r-xwp6-mh6c"
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          "name": "Gitea 1.27.3 release announcement",
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          "url": "https://blog.gitea.com/release-of-1.27.3/"
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          "name": "go-gitea/gitea v1.27.3 release",
          "tags": [
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          "url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.3"
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      "title": "Gitea fork workflow approval bypass through review events"
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  "cveMetadata": {
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    "assignerShortName": "Gitea",
    "cveId": "CVE-2026-71184",
    "datePublished": "2026-10-14T14:37:05.020Z",
    "dateReserved": "2026-08-13T16:50:58.683Z",
    "dateUpdated": "2026-10-15T03:56:48.665Z",
    "state": "PUBLISHED"
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      "epss": "0.0049",
      "percentile": "0.40717"
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                "versions": [
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                    "status": "affected",
                    "version": "1.20.0",
                    "versionType": "semver"
                  }
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        ],
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        "descriptions": [
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            "lang": "en",
            "value": "Gitea\u0027s pull request review notifier does not attach the pull request to the Actions notification, so the fork workflow approval gate does not recognize the run as originating from a fork. Review comment and review approval or rejection events can consequently load workflow code from the fork head and run it on the base repository\u0027s runners without the required maintainer approval. This allows execution of fork-controlled workflow code across the intended approval boundary."
          }
        ],
        "id": "CVE-2026-71184",
        "lastModified": "2026-10-15T04:18:25.337",
        "metrics": {
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                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "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:H",
                "version": "3.1"
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                "version": "2.0.3"
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            "url": "https://blog.gitea.com/release-of-1.27.3/"
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            "url": "https://github.com/go-gitea/gitea/pull/39005"
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        "vulnStatus": "Deferred",
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            "type": "Secondary"
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              "value": "https://github.com/echoesofwhoami"
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              "value": "https://github.com/iabdullah215"
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            }
          ],
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}



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