CVE-2026-56855

7.5 Élevée

Publiée le 02/09/2026 à 22:17 · Modifiée le 04/09/2026 à 18:34 · Analysée par le NVD · Source : security@golang.org

Description

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connection down instead of buffering and blocking.

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Produits concernés

golang.org/x/crypto/ssh
Golang crypto

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.5 Élevée	134c704f-9b21-4f2e-91b3-4a467353bcc0	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-770

Références

https://go.dev/cl/826524 Patch
https://go.dev/issue/81317 Issue TrackingVendor Advisory
https://groups.google.com/g/golang-announce/c/1y3fb2np35U Mailing ListVendor Advisory
https://pkg.go.dev/vuln/GO-2026-6355 Vendor Advisory

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories