CVE-2026-115775
Severity not reportedTwisted is an event-based framework for internet applications, supporting Python 3.6+.
Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, the twisted.words.xish.domish ExpatElementStream parser allows an unauthenticated remote peer to keep a container element open while continuously adding child elements. The parser retains the unfinished stanza as an in-memory tree without a byte or element-count limit, and XMPP pre-authentication stream parsing exposes this behavior before credentials are accepted. A single connection can therefore exhaust server memory and terminate the process. This issue is fixed in version 26.10.0rc1.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/twisted/twisted/commit/8873814bec8288e2466fad4d2c4d64039beb88b0 security-advisories@github.com
- https://github.com/twisted/twisted/pull/12751 security-advisories@github.com
- https://github.com/twisted/twisted/releases/tag/twisted-26.10.0rc1 security-advisories@github.com
- https://github.com/twisted/twisted/security/advisories/GHSA-3476-c5c2-fr73 security-advisories@github.com
- https://github.com/twisted/twisted/security/advisories/GHSA-3476-c5c2-fr73 134c704f-9b21-4f2e-91b3-4a467353bcc0