CVE-2026-111062
LOW
INFO
Priority: 0.01
BB Relevance:
45/100
Published: 2026-11-05
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Network
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
Low
UI:
None
S:
X
AT:
Present
VC:
None
VI:
Low
VA:
None
Description
russh is a Rust SSH client and server library. From version 0.34.0-beta.1 until version 0.64.0, its SSH server does not require the signature algorithm in a public-key authentication signature to match the algorithm named in the authentication request. A client possessing an authorized RSA private key can announce rsa-sha2-512 while supplying a valid ssh-rsa SHA-1 signature, bypassing restrictions or producing misleading audit records when applications rely on the requested algorithm. A valid private-key signature remains required, and russh clients are not affected. This issue is fixed in version 0.64.0.
Weakness Classification (1)
Affected Software (2)
References & Advisories (4)
x_refsource_MISC
x_refsource_MISC
x_refsource_MISC
x_refsource_CONFIRM