View at Official debian advisory, NVD, CVE.org · CVE detail
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CVE-2026-6245 unimportant priority: Debian including 1 source packages (sssd), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): open 2, resolved 2.
A flaw was found in the System Security Services Daemon (SSSD). The pam_passkey_child_read_data() function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an out-of-bounds read when processed by functions like snprintf(). A local attacker could potentially trigger this vulnerability by initiating a crafted passkey authentication request, causing the SSSD PAM responder to crash, resulting in a local Denial of Service (DoS).