Out-of-bounds Read Affecting sssd package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-DEBIAN13-SSSD-19787009
  • published15 Sept 2026
  • disclosed14 Sept 2026

Introduced: 14 Sep 2026

NewCVE-2026-90994  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for Debian:13 sssd.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sssd package and not the sssd package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

A flaw was found in sssd, specifically within the PAM (Pluggable Authentication Modules) responder's protocol v1 parser, pam_parse_in_data(). A local client with access to the PAM responder's UNIX socket can exploit this by negotiating protocol v1 and sending an empty or truncated PAM request body. This can trigger an out-of-bounds read, potentially causing the PAM responder to terminate or restart, leading to a local denial of service.

CVSS Base Scores

version 3.1