How severe is CVE-2026-39316?

CVE-2026-39316 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-39316 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-39316?

CVE-2026-39316 affects Openprinting Cups. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-39316?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-39316 have an EU (EUVD) identifier?

Yes. CVE-2026-39316 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19806.

When was CVE-2026-39316 published?

CVE-2026-39316 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-39316

CVE-2026-39316 is a medium-severity vulnerability in Openprinting Cups with a CVSS 3.x base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19806
Weakness: CWE-416
Affected product: Openprinting Cups
Published: 2026-04-07
Last modified: 2026-06-17

Description

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when temporary printers are automatically deleted. cupsdDeleteTemporaryPrinters() in scheduler/printers.c calls cupsdDeletePrinter() without first expiring subscriptions that reference the printer, leaving cupsd_subscription_t.dest as a dangling pointer to freed heap memory. The dangling pointer is subsequently dereferenced at multiple code sites, causing a crash (denial of service) of the cupsd daemon. With heap grooming, this can be leveraged for code execution.

Frequently asked questions

What is CVE-2026-39316?: OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when temporary printers are automatically deleted. cupsdDeleteTemporaryPrinters() in scheduler/printers.c calls cupsdDeletePrinter() without first expiring subscriptions that reference the printer, leaving cupsd_subscription_t.dest as a dangling pointer to freed heap memory. The dangling pointer is subsequently dereferenced at multiple code sites, causing a crash (denial of service) of the cupsd daemon. With heap grooming, this can be leveraged for code execution.
How severe is CVE-2026-39316?: CVE-2026-39316 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-39316 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-39316?: CVE-2026-39316 affects Openprinting Cups. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-39316?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39316 have an EU (EUVD) identifier?: Yes. CVE-2026-39316 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19806.
When was CVE-2026-39316 published?: CVE-2026-39316 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://github.com/OpenPrinting/cups/security/advisories/GHSA-pjv5-prqp-46rg

Affected products (1)

cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:*

More vulnerabilities in Openprinting Cups

CVE-2025-58060 — High (CVSS 8.0): OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12…
CVE-2026-34990 — High (CVSS 7.8): OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16…
CVE-2026-34980 — High (CVSS 7.5): OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16…
CVE-2023-32324 — High (CVSS 7.5): OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability…
CVE-2023-4504 — High (CVSS 7.0): Due to failure in validating the length provided by an attacker-crafted PPD PostScript document, CUPS and libppd are…
CVE-2022-26691 — Medium (CVSS 6.7): A logic issue was addressed with improved state management. This issue is fixed in Security Update 2022-003 Catalina,…

All CVEs affecting Openprinting Cups →

Other CWE-416 (Use After Free) vulnerabilities

CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

Browse all CWE-416 (Use After Free) vulnerabilities →