Hi,

The following vulnerability was published for sssd.

CVE-2026-90994[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-90994
https://www.cve.org/CVERecord?id=CVE-2026-90994
[1] https://bugzilla.redhat.com/show_bug.cgi?id=2479455

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore