Improper Following of Specification by Caller Affecting openssh package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-OPENSSH-17895018
- published8 Jul 2026
- disclosed8 Jul 2026
- creditUnknown
Introduced: 8 Jul 2026
NewCVE-2026-59998 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Improper Following of Specification by Caller due to the GSSAPIStrictAcceptorCheck process when the server operates in a Windows Active Directory environment. An attacker can bypass intended authentication checks by exploiting this undocumented behavior.