CVE-2026-90463

MediumCVSS 4.0/10Last modified Nov 6, 2026

Description

A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.

Metrics

CVSS 3.1 4.0/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
Red HatRed Hat Enterprise Linux 10—
Red HatRed Hat Enterprise Linux 6—
Red HatRed Hat Enterprise Linux 7—
Red HatRed Hat Enterprise Linux 8—
Red HatRed Hat Enterprise Linux 9—
Red HatRed Hat OpenShift Container Platform 4—
Red HatRed Hat OpenShift Container Platform 4—
Red HatRed Hat OpenShift Container Platform 5—

References

Timeline

Published
Sep 14, 2026
Last modified
Nov 6, 2026
NVD status
Awaiting Analysis

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CVE-2026-90463: Medium severity, CVSS 4.0 | Vulnix