CVE-2026-115776: falha de alta gravidade em twisted
Twisted: Unauthenticated Remote Denial of Service in the Twisted IRC Server via an Unbounded Line Buffer
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
twisted · twistedCVEs relacionadas — twisted
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Referências
https://github.com/twisted/twisted/commit/01f8cff7753c1edac132380b2ea939fa6bdbab30https://github.com/twisted/twisted/commit/ac90fb7b0ab73688a581fcd9a7c0577ec8ca3059https://github.com/twisted/twisted/pull/12771https://github.com/twisted/twisted/releases/tag/twisted-26.10.0rc1https://github.com/twisted/twisted/security/advisories/GHSA-53xc-49m8-p798