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CVE-2026-20736

Gitea Web Attachment Deletion: Cross-Repository Unauthorized Deletion via Missing Repo Ownership Check

Published: Jan 22, 2026Updated: Jan 29, 2026 Sources: CVE List NVD GHSACWE-284
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.3%
Top 76.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Gitea does not properly verify repository context when deleting attachments. A user who previously uploaded an attachment to a repository may be able to delete it after losing access to that repository by making the request through a different repository they can access.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-284

Affected Products

Gitea Open Source Git ServerGitea
On-prem
DevTools & CI / source-control
giteagitea
On-premDev Tool
DevTools & CI / source-control
code.gitea.io/giteaGoOSS Libraries
giteaoss-projectDevTools & CIaka gitea open source git server, gitea
gopackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

https://github.com/go-gitea/gitea/security/advisories/GHSA-jr6h-pwwp-c8g6
github.com
https://github.com/go-gitea/gitea/pull/36320
github.com
https://github.com/go-gitea/gitea/releases/tag/v1.25.4
github.com
and 5 more references View all →

Timeline

Published
Jan 22, 2026
Last Updated
Jan 29, 2026

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