TI-2026-16833 Aliases CVE-2026-20800 GHSA-2vgv-hgv4-22mh

Notification API Leaks Private Repository Issue Titles After Collaborator Permission Revocation

LOW 29CWE-200Published 2026-01-22 · Updated 2026-01-23

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

Gitea's notification API does not re-validate repository access permissions when returning notification details. After a user's access to a private repository is revoked, they may still view issue and pull request titles through previously received notifications.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00406 35th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Gitea	Gitea Open Source Git Server	up to 1.25.3	—	No fix listed	CNA
—	github.com/go-gitea/gitea (Go)	before 1.25.4	1.25.4	Patch available	GHSA-2vgv-hgv4-22mh

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-2vgv-hgv4-22mh

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:gitea:gitea::::::-::*	before 1.25.4	Vulnerable	Gitea

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

Remediation

Fix · GHSA-2vgv-hgv4-22mh github.com/go-gitea/gitea (Go) Fixed in 1.25.4 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-20800
2026-10-03 Alias added: GHSA-2vgv-hgv4-22mh

References

Patch 1

GitHub Pull Request #36339

Advisory 2

Other 5

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