MEDIUM 6.5 Microsoft
CVE-2026-34978
OpenPrinting CUPS: Path traversal in RSS notify-recipient-uri enables file write outside CacheDir/rss (and clobbering of job.cache)
Microsoft Security Update 2026-Apr: OpenPrinting CUPS: Path traversal in RSS notify-recipient-uri enables file write outside CacheDir/rss (and clobbering of job.cache)
Affected Products
- azl3 cups 2.4.16-1 on Azure Linux 3.0
- cbl2 cups 2.3.3op2-11 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34978
- https://nvd.nist.gov/vuln/detail/CVE-2026-34978
This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-04-14 via Microsoft. Affected: azl3 cups 2.4.16-1 on Azure Linux 3.0, cbl2 cups 2.3.3op2-11 on CBL Mariner 2.0.
vulnfeed aggregates 9214 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.