golang.org/x/crypto/ssh/agent vulnerable to panic if message is malformed due to out of bounds read

GHSA-f6x5-jh6r-wrfv · CVE-2025-47914 · GO-2025-4135

Published Nov 19, 2025 · Modified Mar 24, 2026

Description

SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-47914
WEB https://go.dev/cl/721960
WEB https://go.dev/issue/76364
WEB https://go.googlesource.com/crypto
WEB https://groups.google.com/g/golang-announce/c/w-oX3UxNcZA
WEB https://pkg.go.dev/vuln/GO-2025-4135

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