CVE-2026-56755: medium-severity vulnerability in Gitea Open Source Git Server
Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload
Published
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.2epss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Gitea · Gitea Open Source Git ServerRelated CVEs — Gitea Open Source Git Server
In the same product, most dangerous first.
CVE-2024-6886CRITICALInproper Sanitation of field leading to stored XSSEPSS 33.0%CVE-2026-20896CRITICALGitea Docker image trusts spoofable reverse-proxy headers by defaultEPSS 2.8%CVE-2026-27771HIGHGitea Composer package source links use insufficient permission checksEPSS 1.4%CVE-2026-26292CRITICALGitea LFS mirror synchronization bypasses migration HTTP transport restrictionsEPSS 0.7%CVE-2026-27780CRITICALGitea pre-receive hook can miss branch-protection checks after scanner errorsEPSS 0.6%CVE-2026-26307HIGHGitea git grep search lacks a timeoutEPSS 0.6%