Resource exhaustion in Gitea - CVE-2026-56755
Published: July 14, 2026
Vulnerability identifier: #VU137437
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-56755
CWE-ID: CWE-400
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 uncontrolled resource consumption in ParseControlFile when processing an uploaded .deb file containing a crafted compressed control.tar.gz member. A remote user can upload a specially crafted package to cause a denial of service.
The issue is triggered before content validation runs.
Affected software
Gitea
How to mitigate CVE-2026-56755
Install security update from vendor's website.
Gitea - update to 1.27.0