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Vulnerability · Published Oct 9, 2026 · Assigned by mitre

CVE-2026-107888

Medium 5.1

In plain English

A medium-severity null pointer dereference in CUPS from OpenPrinting. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 3.1)5.1Medium
Exploit odds (30 days)0.1%top 97.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

OpenPrinting CUPS before 2.4.20 contains a NULL pointer dereference in cupsdCheckJobs() when a job marked job-held-on-create refers to a temporary printer that has been automatically deleted. Temporary-printer cleanup can remove the destination without canceling its held jobs, and the scheduler dereferences the NULL result of cupsdFindDest() while checking holding_new_jobs. This terminates cupsd and interrupts all queues managed by that process. In some plausible scenarios, an unprivileged submission can trigger this.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12cupsno fix listedDEBIAN-CVE-2026-107888
Debian:13cupsno fix listedDEBIAN-CVE-2026-107888
Debian:14cupsno fix listedDEBIAN-CVE-2026-107888
Ubuntu:22.04:LTScupsno fix listedUBUNTU-CVE-2026-107888
Ubuntu:24.04:LTScupsno fix listedUBUNTU-CVE-2026-107888
Ubuntu:26.04:LTScupsno fix listedUBUNTU-CVE-2026-107888
Ubuntu:26.10cupsno fix listedUBUNTU-CVE-2026-107888

Affected products (as reported)

VendorProductVersions
OpenPrinting CUPS 0 – before 2.4.20

Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References