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.

CVSS v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-90996	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2478986	Exploit Issue Tracking Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:fedoraproject:sssd:2.12.0:::::::*
	cpe:2.3:a:redhat:openshift_container_platform:4.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:10.0:::::::*

History

07 Oct 2026, 14:29

Type	Values Removed	Values Added
First Time		Redhat Fedoraproject sssd Redhat openshift Container Platform Fedoraproject Redhat enterprise Linux
References	~~() https://access.redhat.com/security/cve/CVE-2026-90996 -~~	() https://access.redhat.com/security/cve/CVE-2026-90996 - Vendor Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2478986 -~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2478986 - Exploit, Issue Tracking, Mitigation, Vendor Advisory
CPE		cpe:2.3:o:redhat:enterprise_linux:9.0:::::::* cpe:2.3:o:redhat:enterprise_linux:10.0:::::::* cpe:2.3:a:redhat:openshift_container_platform:4.0:::::::* cpe:2.3:a:fedoraproject:sssd:2.12.0:::::::* cpe:2.3:o:redhat:enterprise_linux:7.0:::::::* cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*

Information

Published : 2026-09-14 16:17

Updated : 2026-10-07 14:29

NVD link : CVE-2026-90996

Mitre link : CVE-2026-90996

CVE.ORG link : CVE-2026-90996

JSON object : View

Products Affected

redhat

openshift_container_platform
enterprise_linux

fedoraproject

sssd

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

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