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TI-2026-16914 Aliases CVE-2026-20888GHSA-9cgq-wp42-4rpq

Gitea Pull Requests Auto-Merge: Read-Only Users Can Cancel Scheduled Auto-Merge via Web Endpoint (Authorization Bypass)

Priority LOW 20CWE-284Published · Updated

Key facts

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

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

Summary

Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0033 26th percentileScored 2026-11-07
Fix Fixed github.com/go-gitea/gitea (Go): 1.25.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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 1.25.3—No fix listedCNA
—github.com/go-gitea/gitea (Go)before 1.25.41.25.4Patch availableGHSA-9cgq-wp42-4rpq
  • Gitea Open Source Git Server VendorGitea Affected up to 1.25.3 Fixed in — No fix listed CNA
  • github.com/go-gitea/gitea (Go) Vendor— Affected before 1.25.4 Fixed in 1.25.4 Patch available GHSA-9cgq-wp42-4rpq

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gitea:gitea:*:*:*:*:*:-:*:*before 1.25.4VulnerableGitea
  • cpe:2.3:a:gitea:gitea:*:*:*:*:*:-:*:* Versions before 1.25.4 Vulnerable ·Gitea

Remediation

  • Fix · GHSA-9cgq-wp42-4rpq github.com/go-gitea/gitea (Go) Fixed in 1.25.4 Advisory →

Vendor assessments

Red Hat

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

Not affected: 1 product
  • OpenShift Pipelines

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20888
  2. 2026-10-03 Alias added: GHSA-9cgq-wp42-4rpq

References

Patch 2

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-2020-11072 The git hook feature in Gitea 1.1.0 through 1.12.5 might allow for authenticated remote… CVSS 3.1HIGH 7.2
  • TI-2022-12910 Gitea before 1.16.7 does not escape git fetch remote. CVSS 3.1HIGH 7.5
  • TI-2019-08404 models/repo_mirror.go in Gitea before 1.7.6 and 1.8.x before 1.8-RC3 mishandles mirror… CVSS 3.1HIGH 8.8
  • TI-2022-00955 Open Redirect on login in go-gitea/gitea CVSS 3.1MEDIUM 6.1
  • TI-2026-68968 Push-to-create bypass of FORCE_PRIVATE policy in Gitea CVSS 3.1MEDIUM 5.4
See all 80 →

Sources

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