Medium severity5.5NVD Advisory· Published Nov 12, 2026· Updated Nov 12, 2026

CVE-2026-127101

Description

A flaw was found in SSSD's PAM responder. A local attacker can send an authentication request without first negotiating the client protocol version. The responder dereferences a NULL protocol-version pointer and crashes, disrupting SSSD-backed authentication. Repeated crafted requests can sustain the denial of service.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

SSSD/Sssdllm-fuzzy

Patches

Vulnerability mechanics

References

access.redhat.com/security/cve/CVE-2026-127101nvd
bugzilla.redhat.com/show_bug.cginvd

News mentions

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