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TI-2026-18124 Aliases CVE-2026-22555GHSA-fhx7-m96w-mv29

Gitea organization forks can expose organization secrets without create permission

Priority HIGH 70CWE-284Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-284.

Summary

Gitea versions before 1.26.0 allow API users to fork a repository into an organization without first passing the CanCreateOrgRepo check, which can expose organization secrets.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00387 32nd percentileScored 2026-11-07
Fix Fixed Gitea Open Source Git Server (Gitea): 1.26.0code.gitea.io/gitea (Go): 1.26.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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 Serverbefore 1.26.01.26.0Patch availableCNA
—code.gitea.io/gitea (Go)before 1.26.01.26.0Patch availableGHSA-fhx7-m96w-mv29
  • Gitea Open Source Git Server VendorGitea Affected before 1.26.0 Fixed in 1.26.0 Patch available CNA
  • code.gitea.io/gitea (Go) Vendor— Affected before 1.26.0 Fixed in 1.26.0 Patch available GHSA-fhx7-m96w-mv29

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 · CNA Gitea Open Source Git Server (Gitea) Fixed in 1.26.0
  • Fix · GHSA-fhx7-m96w-mv29 code.gitea.io/gitea (Go) Fixed in 1.26.0 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Gitea Open Source Git Server 1.26.0

    3 records Highest priority Priority HIGH 2 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-22945 Gitea 3D file viewer allows stored XSS through glTF extensionsRequiredPriority HIGH 71
    • TI-2026-22138 Gitea pre-receive hook can miss branch-protection checks after scanner errorsPriority MEDIUM 50

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 1 product
  • OpenShift Pipelines

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-22555
  2. 2026-10-03 Alias added: GHSA-fhx7-m96w-mv29

References

  • 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