CVE-2026-104042
Red Hat Enterprise Linux 10: Sssd: sssd: denial of service via out-of-bounds read in pam responder
Red Hat Red Hat Enterprise Linux 10Operating systems
CVSS
5.5MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 7 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.11%Chance of exploitation activity in the next 30 days, higher than 1% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
A flaw was found in sssd. A local attacker can cause a Denial of Service (DoS) by sending a crafted Pluggable Authentication Module (PAM) request containing a zero-length authentication token to the responder socket. Due to missing input validation, the service attempts to read beyond buffer boundaries when processing the token, causing the PAM responder to crash.
Text from CVE List