Input validation error in Gitea - CVE-2026-59763
Published: July 14, 2026
Vulnerability identifier: #VU137451
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59763
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to improper input validation in the Arch package registry metadata parser and repository index generation when processing uploaded Arch package archives. A remote user can upload a specially crafted package archive with a large number of file entries to cause a denial of service.
The issue requires package publishing permission and can amplify server-side CPU, memory, storage, and repository index processing relative to the compressed upload size.
Affected software
Gitea
How to mitigate CVE-2026-59763
Install security update from vendor's website.
Gitea - update to 1.27.0