{"id":"CVE-2026-56755","aliases":["GHSA-6hm7-3pwj-22rm","GO-2026-6037"],"url":"https://o3.security/vulnerability/CVE-2026-56755","summary":"Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload","details":"Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload","published":"2026-08-13T16:44:44.222Z","modified":"2026-08-28T11:30:55.493754676Z","cvss":{"score":6.2,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00183,"percentile":0.07935,"asOf":"2026-09-05"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"code.gitea.io/gitea","fixedVersion":"1.27.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://blog.gitea.com/gitea-1.27.0-is-released/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56755.json"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.0"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-6hm7-3pwj-22rm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56755"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-28T11:30:55.493754676Z"}}