Medium severity5.5NVD Advisory· Published Nov 12, 2026· Updated Nov 12, 2026
CVE-2026-127100
CVE-2026-127100
Description
A flaw was found in SSSD's PAM responder on builds with the JSON PAM extension enabled. A local attacker can submit a crafted authentication request containing a non-string OAuth2 code value. Missing JSON type validation leads to a NULL pointer dereference, terminating the PAM responder and disrupting SSSD-backed authentication.
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Affected products
1Patches
Vulnerability mechanics
References
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