{"cve":"CVE-2026-56755","nvd":{"published":"2026-08-13T17:17:25.680","modified":"2026-08-26T16:53:48.300","status":"Deferred","description":"Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.2},"cwes":["CWE-284"],"references":["https://blog.gitea.com/gitea-1.27.0-is-released/","https://github.com/go-gitea/gitea/releases/tag/v1.27.0","https://github.com/go-gitea/gitea/security/advisories/GHSA-6hm7-3pwj-22rm"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-56755","score":0.00174,"percentile":0.06862,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-6hm7-3pwj-22rm","url":"https://osv.dev/vulnerability/GHSA-6hm7-3pwj-22rm","summary":"Gitea: Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload","modified":"2026-07-22T21:11:15.758763076Z","packages":[{"ecosystem":"Go","name":"code.gitea.io/gitea","purl":"pkg:golang/code.gitea.io/gitea","ranges":["<1.27.0"],"fixed":["1.27.0"]}]},{"id":"GO-2026-6037","url":"https://osv.dev/vulnerability/GO-2026-6037","summary":"Gitea: Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload in gitea.dev","modified":"2026-07-22T21:00:25.723160879Z","packages":[{"ecosystem":"Go","name":"gitea.dev","purl":"pkg:golang/gitea.dev","ranges":["<1.27.0"],"fixed":["1.27.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}