Description
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.
Published: 2026-10-09
Score: 3.3 Low
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 09 Oct 2026 06:15:00 +0000

Type Values Removed Values Added
Title CUPS Scheduler Timeout Suppression Enables Resource Exhaustion

Fri, 09 Oct 2026 04:15:00 +0000

Type Values Removed Values Added
Description 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.
First Time appeared Openprinting
Openprinting cups
Weaknesses CWE-770
CPEs cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:*
Vendors & Products Openprinting
Openprinting cups
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

Openprinting Cups
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-09T03:54:16.283Z

Reserved: 2026-10-09T03:54:15.382Z

Link: CVE-2026-107885

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-09T04:18:04.940

Modified: 2026-10-09T04:18:04.940

Link: CVE-2026-107885

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T07:00:10Z

Weaknesses
  • CWE-770

    Allocation of Resources Without Limits or Throttling