{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56755","assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","state":"PUBLISHED","assignerShortName":"Gitea","dateReserved":"2026-07-08T09:19:08.011Z","datePublished":"2026-08-13T16:44:44.222Z","dateUpdated":"2026-08-13T18:38:14.713Z"},"containers":{"cna":{"title":"Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload","descriptions":[{"lang":"en","value":"Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload"}],"affected":[{"vendor":"Gitea","product":"Gitea Open Source Git Server","versions":[{"version":"0","lessThanOrEqual":"1.26.4","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","description":"CWE-284","lang":"en","type":"CWE"}]}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-6hm7-3pwj-22rm","name":"GitHub Security Advisory","tags":["vendor-advisory"]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.0","name":"Gitea v1.27.0 Release","tags":["release-notes"]},{"url":"https://blog.gitea.com/gitea-1.27.0-is-released/","name":"Gitea v1.27.0 Release Blog Post","tags":["release-notes"]}],"providerMetadata":{"orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","shortName":"Gitea","dateUpdated":"2026-08-13T16:44:44.222Z"},"credits":[{"lang":"en","value":"AdamKorcz","type":"reporter"}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.2,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T18:38:09.639646Z","id":"CVE-2026-56755","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-13T18:38:14.713Z"}}]}}