Path traversal in cups - CVE-2026-61702
Published: July 13, 2026
Vulnerability identifier: #VU137378
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-61702
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to path traversal in CUPS scheduler banner handling, root-side copy_banner() path construction when processing a print job with a crafted attributes-natural-language value during banner generation. A remote attacker can submit a specially crafted print job to disclose sensitive information.
Exploitation requires a banner-capable local queue processing job-sheets=standard,none, and the disclosed data is limited to files readable within the CUPS victim environment.
Affected software
cups
How to mitigate CVE-2026-61702
Install security update from vendor's website.
cups - update to 2.4.20