CVE-2026-90996

Medium

Description

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.

SeverityMedium

CVSS4.0

Exploit probability—

Product

Fedoraproject Sssd

PublishedSep 14, 2026

First seenSep 14, 2026

Weakness typeCWE-191CWE-191

How to fix

Vendor advisories

access.redhat.com/security/cve/CVE-2026-90996
bugzilla.redhat.com/show_bug.cgi?id=2478986

Affected products

Product	Affected versions	Fixed in
fedoraproject sssd	2.12.0	—
redhat openshift_container_platform	4.0	—
redhat enterprise_linux	7.0, 8.0, 9.0, 10.0	—

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