# CVE-2026-90994

## Summary

- **CVE ID:** CVE-2026-90994
- **Severity:** MEDIUM
- **CVSS Score:** 4 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-125
- **Published:** Sep 14, 2026
- **Last Modified:** Sep 14, 2026

## Description

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.

## Affected Products

No affected products listed.

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-90994)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2479455)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.12%
- **EPSS Percentile:** 2.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._