CVE-2026-107886

Description

OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify-Class replaces an existing class member list, add_class() frees pclass->printers without clearing the pointer. If subsequent validation fails, the class retains the dangling pointer; CUPS-Delete-Class subsequently frees the same allocation in cupsdDeletePrinter(). A client authorized to modify and delete classes can cause scheduler-wide denial of service. The default policy requires @SYSTEM privileges.

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Produits concernés

• OpenPrinting CUPS

Scores CVSS

Faiblesses (CWE)

• CWE-415

Références

• https://github.com/OpenPrinting/cups/security/advisories/GHSA-pwg4-pv39-8c22 ExploitPatchVendor Advisory
• https://github.com/OpenPrinting/cups/security/advisories/GHSA-pwg4-pv39-8c22 ExploitPatchVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories