Expired Pointer Dereference Affecting sssd package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-SSSD-17707786
- published30 Jun 2026
- disclosed9 Jun 2026
- creditUnknown
Introduced: 9 Jun 2026
CVE-2026-12610 (opens in a new tab)How to fix?
There is no fixed version for sssd.
Overview
Affected versions of this package are vulnerable to Expired Pointer Dereference in the sssd_pam process when handling YubiKey authentication. An attacker can cause the process to crash and disrupt user access by manipulating smartcard contents during an active authentication attempt. This is only exploitable if the attacker is able to control the smartcard or YubiKey contents during an ongoing authentication session.
Workaround
This vulnerability can be mitigated by configuring the sssd systemd service to automatically restart on failure. This ensures authentication remains available even if an attacker triggers the crash.