CVE-2026-107885

OpenPrinting CUPS through 2.4.20 contains a resource-exhaustion vulnerability in the submission-timeout handling of cupsdCheckJobs(). The scheduler suppresses timeout processing for all pending jobs whenever any client connection has an in-flight Send-Document operation, without matching that connection to the job being examined. A client allowed to reach the IPP service can hold an incomplete HTTP request containing parsed Send-Document headers before operation authorization, preventing unrelated incomplete jobs from expiring. Where Create-Job submission is allowed, incomplete jobs can accumulate until MaxJobs is exhausted and further legitimate print submissions are rejected. The suppression ends when the held connection closes.

• CWE-770

• https://github.com/OpenPrinting/cups/security/advisories/GHSA-hhw5-qqmc-p6rg
• https://github.com/OpenPrinting/cups/security/advisories/GHSA-hhw5-qqmc-p6rg

Published

Oct 9, 2026

Last Modified

Oct 9, 2026

Status

Awaiting Analysis

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