CVE-2026-27771
HighGitea versions up to and including 1.26.1 have insufficient permission checks for Composer package source links, which can expose private or internal package source information.
Published Jul 3, 2026 · Updated Aug 12, 2026 · Also known as EUVD-2026-41635, GHSA-8qw8-rq86-9pc2, GO-2026-6017
Key Facts
Patch in the next maintenance window- CVE-2026-27771 is a high-severity vulnerability (CVSS 8.2 v3.1) affecting code.gitea.io/gitea (go), Gitea Open Source Git Server.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 1.4% probability of exploitation in the next 30 days.
- Fixed versions are available, including code.gitea.io/gitea 1.26.2.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
CVSS v3.1
8.2
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS (30-day exploit likelihood)
1.4%
Higher than 71.9% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
Gitea versions up to and including 1.26.1 have insufficient permission checks for Composer package source links, which can expose private or internal package source information.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| code.gitea.io/giteago | See advisory | 1.26.2 |
| Gitea Open Source Git Server | See advisory | n/a |
Patched Releases
code.gitea.io/gitea
1.26.2
Timeline
Publicly disclosed
Jul 3, 2026
Last updated
Aug 12, 2026
Weakness Type
- CWE-862 Missing Authorization
References
- advisoryhttps://blog.gitea.com/release-of-1.26.2
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27771.json
- advisoryhttps://github.com/go-gitea/gitea/security/advisories
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-27771
FAQ
Common Questions.
Gitea versions up to and including 1.26.1 have insufficient permission checks for Composer package source links, which can expose private or internal package source information.
Affected: code.gitea.io/gitea (go); Gitea Open Source Git Server. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including code.gitea.io/gitea 1.26.2.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
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