PT-2026-44113 · Pam Usb · Pam Usb

Mcdope · CVE-2026-44713 · Published 2026-05-27 · Updated 2026-05-28

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions pam usb versions prior to 0.8.7

Description In the src/tmux.c file, the software reads the $TMUX environment variable, splits it by commas, and interpolates the socket-path component directly into a shell command executed via the popen() function. Since the value is placed within double-quotes without proper sanitization, an attacker can use a double-quote character to terminate the string and inject arbitrary shell syntax. This process executes with root privileges within the PAM stack, potentially leading to remote code execution.

Recommendations Update to version 0.8.7.

Exploit

Fix

RCE

OS Command Injection

Improper Encoding or Escaping of Output

Weakness Enumeration

CWE-78

CWE-116

Related Identifiers

CVE-2026-44713

GHSA-822M-WHRH-VRJ8

Affected Products

Pam Usb

References · 5

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44713.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-44713 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-44713 · Security Note
• https://github.com/mcdope/pam_usb/security/advisories/GHSA-822m-whrh-vrj8 · Note
• https://t.me/CVEtracker/55178 · Telegram Post