CVE-2026-56854
The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and
CVSS
7.5
Alto
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 28 ago 2026 · Última mod.: 28 ago 2026 · CWE-863
Sin historial EPSS suficiente todavía.
The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback, NoClientAuthCallback, and GSSAPIWithMICConfig.AllowLogin callbacks were not validated against the client's remote address, so a source-address restriction set by those callbacks was silently ignored. The check is now applied to the Permissions returned by any authentication callback.
CVECVSSEPSSKEVRExplotTítuloVis.
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