CVE-2026-107885

cups: cups: Denial of Service via improper job submission timeout handling

Published Oct 9, 2026 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title CUPS Scheduler Timeout Suppression Enables Resource Exhaustion cups: cups: Denial of Service via improper job submission timeout handling
Weaknesses CWE-772
References
Metrics threat_severity

None

threat_severity

Low

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 9, 2026, 8:26 PM
Reserved
Oct 9, 2026, 3:54 AM
Status
Analyzed
Published
Oct 9, 2026, 4:18 AM
Modified
Oct 20, 2026, 8:58 PM
Severity
Low
Public date
Oct 9, 2026, 3:54 AM