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TI-2026-22129 Aliases CVE-2026-27771GHSA-8qw8-rq86-9pc2

Gitea Composer package source links use insufficient permission checks

Priority MEDIUM 44CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01393 72nd percentileScored 2026-11-07
Fix Fixed code.gitea.io/gitea (Go): 1.26.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GiteaGitea Open Source Git Serverup to 1.26.1—No fix listedCNA
—code.gitea.io/gitea (Go)before 1.26.21.26.2Patch availableGHSA-8qw8-rq86-9pc2
  • Gitea Open Source Git Server VendorGitea Affected up to 1.26.1 Fixed in — No fix listed CNA
  • code.gitea.io/gitea (Go) Vendor— Affected before 1.26.2 Fixed in 1.26.2 Patch available GHSA-8qw8-rq86-9pc2

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*——Gitea
  • cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:* Versions — — ·Gitea

Remediation

  • Fix · GHSA-8qw8-rq86-9pc2 code.gitea.io/gitea (Go) Fixed in 1.26.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27771
  2. 2026-10-03 Alias added: GHSA-8qw8-rq86-9pc2

References

Patch 1

Advisory 2

Other 4

  • TI-2026-42785 Gitea before 1.27.1 allows remote code execution via the diffpatch API through Git hook installation. KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-42033 Improper authorization on OAuth sign-in callback silently re-enables administrator-disabled accounts CVSS 3.1CRITICAL 9.8
  • TI-2026-40842 Privilege Escalation via Access Token Scope Escalation in API CVSS 3.1CRITICAL 9.8
  • TI-2026-16922 Gitea Docker image trusts spoofable reverse-proxy headers by default CVSS 3.1CRITICAL 9.8
  • TI-2026-42043 Team-repository linking endpoint bypasses the RepoAdminChangeTeamAccess organization setting CVSS 3.1CRITICAL 9.1
  • TI-2026-40381 OIDC userinfo Endpoint Returns Identity Claims Without Enforcing API Token Scopes CVSS 3.1CRITICAL 9.1
See all 240 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences