Directory Traversal Affecting cups-config package, versions <2.2.7-150000.3.93.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-SLES157-CUPSCONFIG-17816418
  • published4 Jul 2026
  • disclosed2 Jul 2026

Introduced: 2 Jul 2026

NewCVE-2026-34978  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 cups-config to version 2.2.7-150000.3.93.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cups-config package and not the cups-config package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, the RSS notifier allows .. path traversal in notify-recipient-uri (e.g., rss:///../job.cache), letting a remote IPP client write RSS XML bytes outside CacheDir/rss (anywhere that is lp-writable). In particular, because CacheDir is group-writable by default (typically root:lp and mode 0770), the notifier (running as lp) can replace root-managed state files via temp-file + rename(). This PoC clobbers CacheDir/job.cache with RSS XML, and after restarting cupsd the scheduler fails to parse the job cache and previously queued jobs disappear. At time of publication, there are no publicly available patches.

CVSS Base Scores

version 3.1