CVE-2026-90996

A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.

This flaw is rated Moderate. A local unprivileged attacker can trigger a denial of service in the SSSD NSS responder by sending a crafted request to its local UNIX socket. This impact is limited to availability and requires local access, preventing broader system compromise or remote exploitation.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

There's no appropriated mitigation for this issue.