Inadequate Attachment Deletion Verification in Gitea by Gitea
CVE-2026-20736

7.5HIGH

Key Information:

Vendor

Gitea

Status
Gitea Open Source Git Server
Vendor
CVE Published:
22 January 2026

What is CVE-2026-20736?

Gitea has a security vulnerability that allows users to delete attachments from repositories without proper authorization. This issue arises when a user who has previously uploaded an attachment to a repository is able to delete it even after losing access, by making the deletion request through a different repository that they still have access to. This flaw can lead to unauthorized data manipulation and poses a risk to the integrity of repository content. It is critical for users to ensure that they are using the latest version of Gitea to mitigate this issue.

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Deploy the Patch

Affected Version(s)

Gitea Open Source Git Server 0 <= 1.25.3

References

https://github.com/go-gitea/gitea/security/advisories/GHS...
vendor-advisory
https://github.com/go-gitea/gitea/pull/36320
patch
https://github.com/go-gitea/gitea/releases/tag/v1.25.4
release-notes

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

spingARbor
JSON
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