github - ghsa-rw5q-23mh-r4c3

GHSA-RW5Q-23MH-R4C3

Vulnerability from github – Published: 2025-08-26 03:44 – Updated: 2025-08-26 03:44

Details

An improper access control vulnerability was identified in GitHub Enterprise Server that allowed users with access to any repository to retrieve limited code content from another repository by creating a diff between the repositories. To exploit this vulnerability, an attacker needed to know the name of a private repository along with its branches, tags, or commit SHAs that they could use to trigger compare/diff functionality and retrieve limited code without proper authorization. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18, and was fixed in versions 3.14.17, 3.15.12, 3.16.8 and 3.17.5. This vulnerability was reported via the GitHub Bug Bounty program.

Severity ?

7.0 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2025-8447"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-26T02:15:36Z",
    "severity": "HIGH"
  },
  "details": "An improper access control vulnerability was identified in GitHub Enterprise Server that allowed users with access to any repository to retrieve limited code content from another repository by creating a diff between the repositories. To exploit this vulnerability, an attacker needed to know the name of a private repository along with its branches, tags, or commit SHAs that they could use to trigger compare/diff functionality and retrieve limited code without proper authorization. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18, and was fixed in versions 3.14.17, 3.15.12, 3.16.8 and 3.17.5. This vulnerability was reported via the GitHub Bug Bounty program.",
  "id": "GHSA-rw5q-23mh-r4c3",
  "modified": "2025-08-26T03:44:57Z",
  "published": "2025-08-26T03:44:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8447"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.17"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.12"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.8"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-8447 (GCVE-0-2025-8447)

Vulnerability from cvelistv5 – Published: 2025-08-26 01:42 – Updated: 2025-08-26 18:34

Summary

Severity ?

7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_P

References

URL

Tags

	https://docs.github.com/en/enterprise-server@3.14…
	https://docs.github.com/en/enterprise-server@3.15…
	https://docs.github.com/en/enterprise-server@3.16…
	https://docs.github.com/en/enterprise-server@3.17…

Impacted products

	Vendor	Product	Version
	GitHub	Enterprise Server	Affected: 3.14 , ≤ 3.14.16 (semver) Affected: 3.15 , ≤ 3.15.11 (semver) Affected: 3.16 , ≤ 3.16.7 (semver) Affected: 3.17 , ≤ 3.17.4 (semver)

Credits

furbreeze

Show details on NVD website

JSON

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                "id": "CVE-2025-8447",
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                  },
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                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-26T18:34:46.734207Z",
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        },
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    "cna": {
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              "status": "affected",
              "version": "3.15",
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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-RW5Q-23MH-R4C3

CVE-2025-8447 (GCVE-0-2025-8447)

Tags

Sightings

Nomenclature