CVE WatchOct 23, 2026

CVE-2026-115775

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, the twisted.words.xish.domish Ex

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

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0-100

Published: Oct 23, 2026 · Last modified: Oct 23, 2026 · CWE-400 · CWE-770

EPSS · 30d

Not enough EPSS history yet.

Technical description

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.

Official references

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CVE-2026-1157787.5 HIG

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15.3%

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