{"id":"CVE-2026-115776","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-115776","generatedAt":"2026-10-27T23:59:04.810Z","title":"Twisted is an event-based framework for internet applications, supporting Python 3.6+.","description":"Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, twisted.words.protocols.irc.IRC.dataReceived retains all bytes received without a line feed in its per-connection buffer and applies no maximum line length. The twisted.words.service.IRCUser server subclass inherits this behavior, and buffering occurs before PASS, NICK, or USER authentication commands. An unauthenticated connection can continuously grow the buffer until the shared server process runs out of memory and drops all users. This issue is fixed in version 26.10.0rc1.","published":"2026-10-23T21:17:23.000Z","lastModified":"2026-10-26T14:05:17.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400","CWE-770"],"affected":[],"epss":{"score":0.00501,"percentile":0.42634,"date":"2026-10-26","history":[{"date":"2026-10-24","score":0.00742,"percentile":0.5422}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-23T21:17:23.000Z","detail":{"score":"7.5","severity":"HIGH","publishedAt":"2026-10-23T21:17:23.180Z"},"summary":"New CVE, high severity (CVSS 7.5)."}],"references":[{"url":"https://github.com/twisted/twisted/commit/01f8cff7753c1edac132380b2ea939fa6bdbab30","source":"security-advisories@github.com"},{"url":"https://github.com/twisted/twisted/commit/ac90fb7b0ab73688a581fcd9a7c0577ec8ca3059","source":"security-advisories@github.com"},{"url":"https://github.com/twisted/twisted/pull/12771","source":"security-advisories@github.com"},{"url":"https://github.com/twisted/twisted/releases/tag/twisted-26.10.0rc1","source":"security-advisories@github.com"},{"url":"https://github.com/twisted/twisted/security/advisories/GHSA-53xc-49m8-p798","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-115776","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}