CVE•Published 2026-05-27•1 article on news•5 live references•NVD data
CVE-2026-44713
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
—
Weaknesses (CWE)
Description
pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, src/tmux.c reads the user's $TMUX environment variable, splits it on commas, and interpolates the socket-path component directly into a shell command passed to popen(). Because the value is placed inside double-quotes without sanitisation, any value containing " terminates the quoted string and injects arbitrary shell syntax. popen() runs as root inside the PAM stack. This vulnerability is fixed in 0.8.7.
Timeline
Published 2026-05-27
Modified 2026-05-27
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-44713Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-44713Censys host search filtered to this CVE id.
grep.app
CVE-2026-44713Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-44713GitHub code search for direct mentions.
Google dork
"CVE-2026-44713" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-44713 on GitHub.