In OpenSC pam_pkcs11 before 0.6.13, pam_sm_authenticate() wrongly returns PAM_IGNORE in many error situations (such as an error triggered by a smartcard before login), allowing authentication bypass.
0.6.12-1+deb12u10.6.13-1Exploitability
AV:LAC:HPR:NUI:NScope
S:UImpact
C:HI:HA:NCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N