CVE-2026-8855

IBM HTTP Server 8.5, and 9.0 is vulnerable to remote code execution and denial of service in configurations with TLS mutual authentication client authentication...

CVE-2026-47269

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pamusb's denyremote feature checks utmpx utaddrv6 to detect whether an authentication request originates from a remote session. The outer guard was if utent-utaddrv60 != 0, which only tests the first...

EUVD-2026-32656

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pamusb's denyremote feature checks utmpx utaddrv6 to detect whether an authentication request originates from a remote session. The outer guard was if utent-utaddrv60 != 0, which only tests the first...

EUVD-2026-32655

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pamusb is a PAM module loaded into the host process sudo, login, GDM, GNOME Shell. Display managers such as GDM run multiple concurrent authentication threads. Three functions used by the denyremote...

CVE-2026-47271 pam_usb: OOM guards removed by -DNDEBUG cause NULL dereference and authentication process crash

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, src/mem.c implemented out-of-memory guards for xmalloc, xrealloc, and xstrdup using assertdata != NULL. The C standard specifies that all assert expressions are compiled out when NDEBUG is defined at...

EUVD-2026-32654

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, src/mem.c implemented out-of-memory guards for xmalloc, xrealloc, and xstrdup using assertdata != NULL. The C standard specifies that all assert expressions are compiled out when NDEBUG is defined at...

CVE-2026-47271

The CVE affects pam_usb prior to version 0.9.0, where out-of-memory guards in src/mem.c (xmalloc/xrealloc/xstrdup) were removed when NDEBUG is defined. With no NULL checks after allocation, NULL pointer dereferences occur, causing a crash in the PAM module loaded by sudo or login and leading to l...

CVE-2026-47271 pam_usb: OOM guards removed by -DNDEBUG cause NULL dereference and authentication process crash

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, src/mem.c implemented out-of-memory guards for xmalloc, xrealloc, and xstrdup using assertdata != NULL. The C standard specifies that all assert expressions are compiled out when NDEBUG is defined at...

CVE-2026-47272 pam_usb: OTP pad authentication bypass via missing system pad check and uninitialized RNG buffer

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, the pusbpadcompare function in src/pad.c only verified that the user-side pad /.pamusb/device.pad could be read, but did not enforce that the system-side pad the pad file on the USB device was also...

CVE-2026-47272

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, the pusbpadcompare function in src/pad.c only verified that the user-side pad /.pamusb/device.pad could be read, but did not enforce that the system-side pad the pad file on the USB device was also...

EUVD-2026-32653

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, the pusbpadcompare function in src/pad.c only verified that the user-side pad /.pamusb/device.pad could be read, but did not enforce that the system-side pad the pad file on the USB device was also...

CVE-2026-47272

pam_usb for Linux allows local authentication bypass before version 0.9.0 due to pusb_pad_compare() only checking the user-side pad (~/.pamusb/device.pad) and not requiring the system-side pad on the USB device to be present. A local user can delete or obscure their own device.pad to bypass the U...

EUVD-2026-32652

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pamusb builds XPath expressions from user-supplied identifiers PAM username, service name and device-supplied identifiers USB device serial, model, vendor to query /etc/pamusb.conf. These identifiers...

EUVD-2026-32651

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, multiple pamusb helper tools resolved external binaries through the PATH environment variable rather than using absolute paths. An attacker who can influence the process environment during PAM...

CVE-2026-47274 pam_usb: Uncontrolled search path in pam_usb tools allows privilege escalation via PATH manipulation

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, multiple pamusb helper tools resolved external binaries through the PATH environment variable rather than using absolute paths. An attacker who can influence the process environment during PAM...

CVE-2026-47274

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, multiple pamusb helper tools resolved external binaries through the PATH environment variable rather than using absolute paths. An attacker who can influence the process environment during PAM...

CVE-2026-48064

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, when a PAM service is configured with denyremote=false in pamusb commonly done for display managers such as gdm-password or lightdm to bypass process/TTY heuristics for local sessions, the PAMRHOST...

EUVD-2026-32650

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, when a PAM service is configured with denyremote=false in pamusb commonly done for display managers such as gdm-password or lightdm to bypass process/TTY heuristics for local sessions, the PAMRHOST...

CVE-2026-48064

Summary: pam_usb prior to 0.9.1 allowed a remote XDMCP session to bypass USB authentication when deny_remote=false, because the PAM_RHOST check was gated inside the deny_remote branch. Technical details (supported): pam_usb provides hardware authentication for Linux via removable media. In affect...

CVE-2026-48066

pam_usb fixes a thread-unsafe behavior: before 0.9.1, src/log.c used a process-wide static pointer written on every PAM invocation to a stack-local address, creating a data race when PAM is invoked concurrently by multiple threads. The issue is resolved in version 0.9.1. Affected component: pam_u...