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Vulnerabilities CVE-2026-39830

CVE-2026-39830

None
Open
TLP:CLEAR

Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh

NVD CVE.org
Critical Infrastructure

AI Analysis

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Description

A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited global responses are now discarded.

Details

EPSS Score
0.62%

46.5th percentile

Confidence
90%
Published
May 22, 2026
Last Modified
Aug 10, 2026
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