CVE WatchNov 3, 2026

CVE-2026-116775

pageant provides a PageantStream type that implements AsyncRead and AsyncWrite traits and can be used to communicate with a running Pageant

CVSS

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No CVSS

EPSS

0.3%

p22

KEV

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Exploit Today

0-100

Published: Oct 27, 2026 · Last modified: Nov 3, 2026 · CWE-770

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-10-282026-11-07

Technical description

pageant provides a PageantStream type that implements AsyncRead and AsyncWrite traits and can be used to communicate with a running Pageant instance. From 0.2.0 until 0.2.5, PageantStream::new in pageant/src/wmmessage.rs trusts a peer-controlled four-byte length prefix and buffers until len + 4 bytes are available without checking the fixed _AGENT_MAX_MSGLEN transport capacity. An application that bridges an SSH forwarded-agent channel to the raw stream can allow a malicious server to force large allocations or retain a partially filled frame, causing client memory exhaustion. This issue is fixed in version 0.2.5.

Official references

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