Improper Certificate Validation Affecting mcphost package, versions <0.34.0-160000.2.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.5% (42nd percentile)

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  • Snyk IDSNYK-SLES1600-MCPHOST-17439079
  • published24 Jun 2026
  • disclosed20 Jun 2026

Introduced: 20 Jun 2026

CVE-2026-39835  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 mcphost to version 0.34.0-160000.2.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mcphost package and not the mcphost package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

References

CVSS Base Scores

version 3.1