TI-2011-01316 Aliases CVE-2011-1496 GHSA-ph56-qx6x-j8xv

tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to…

LOW 23CWE-264Published 2011-04-18 · Updated 2024-08-06

Key facts

Attack vector: Local
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Partial · Partial · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.

Summary

tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.

Why it matters now

EPSS 0.00952 61st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:nicholas_marriott:tmux:1.3:::::::*	1.3	Vulnerable	Nicholas Marriott
cpe:2.3:a:nicholas_marriott:tmux:1.4:::::::*	1.4	Vulnerable	Nicholas Marriott

cpe:2.3:a:nicholas_marriott:tmux:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·Nicholas Marriott
cpe:2.3:a:nicholas_marriott:tmux:1.4:*:*:*:*:*:*:* Versions 1.4 Vulnerable ·Nicholas Marriott

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2011-1496
2026-10-03 Alias added: GHSA-ph56-qx6x-j8xv

References

Exploit 1

17147

Advisory 7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences