Incorrect Authorization Affecting OpenPrinting/cups package, versions [0, 2.4.17)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-OPENPRINTINGCUPS-15924382
- published7 Apr 2026
- disclosed3 Apr 2026
- creditAriel Silver
Introduced: 3 Apr 2026
CVE-2026-27447 (opens in a new tab)How to fix?
Upgrade OpenPrinting/cups to version 2.4.17 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization due to the case-insensitive group-member lookup. An attacker can gain unauthorized access to restricted operations by supplying a username that differs only in case from an authorized user during authorization checks.