Description
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a client that connects to cupsd but sends slow messages, e.g. only one byte per second, delays cupsd as a whole, such that it becomes unusable by other clients. This issue has been patched in version 2.4.15.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenPrinting | cups | < 2.4.15 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | cups | 2.4.15-1 | — |
| Debian 13 | cups | No fix yet | — |
| Debian 12 | cups | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | cups | 2.4.12-0ubuntu3.5 | USN-7912-1 |
| Ubuntu 24.04 LTS | cups | 2.4.7-1.2ubuntu7.9 | USN-7912-1 |
| Ubuntu 22.04 LTS | cups | 2.4.1op1-1ubuntu4.16 | USN-7912-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | cups | 2.3.1-9ubuntu1.9+esm4 | USN-7912-2 |
| Ubuntu Pro 18.04 LTS | cups | 2.2.7-1ubuntu2.10+esm10 | USN-7912-2 |
| Ubuntu Pro 16.04 LTS | cups | 2.1.3-4ubuntu0.11+esm12 | USN-7912-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | cups +1 | 1:2.4.10-12.el10_1.2 | RHSA-2026:0464 |
| RHEL 9 | cups +7 | 1:2.3.3op2-34.el9_7.2 | RHSA-2026:0312 |
| RHEL 8 | cups +1 | 1:2.2.6-66.el8_10 | RHSA-2026:0596 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | cups +7 | 2.4.17-1.hum1 | RHSA-2026:8814 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | cups-filesystem | 1:2.4.10-12.el10_1.2 | ALSA-2026:0464 |
| AlmaLinux 9 | cups +7 | 1:2.3.3op2-34.el9_7.2 | ALSA-2026:0312 |
| AlmaLinux 8 | cups +6 | 1:2.2.6-66.el8_10 | ALSA-2026:0596 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | cups | 1:2.4.10-12.el10_1.2 | RLSA-2026:0464 |
| Rocky Linux 9 | cups | 1:2.3.3op2-34.el9_7.2 | RLSA-2026:0312 |
| Rocky Linux 8 | cups | 1:2.2.6-66.el8_10 | RLSA-2026:0596 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | cups | 2.2.7-150000.3.77.1 | SUSE-SU-2025:4425-1, SUSE-SU-2025:4319-1, SUSE-SU-2025:4290-1 |
| SLES 15 SP6 | cups | 2.2.7-150000.3.77.1 | SUSE-SU-2025:4425-1, SUSE-SU-2025:4319-1, SUSE-SU-2025:4290-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | cups | 2.4.16-160000.1.1 | SUSE-SU-2026:20231-1 |
| SLES 16.0 | cups | 2.4.16-160000.1.1 | SUSE-SU-2026:20231-1 |
| SLE Micro 6.2 | cups | 2.4.16-160000.1.1 | SUSE-SU-2026:20229-1 |
| SLE Micro 6.1 | cups | 2.4.16-slfo.1.1_1.1 | SUSE-SU-2026:20535-1 |
| SLE Micro 6.0 | cups | 2.4.16-1.1 | SUSE-SU-2026:20528-1 |
| SLE Micro 5.5 | cups | 2.2.7-150000.3.77.1 | SUSE-SU-2025:4425-1, SUSE-SU-2025:4319-1, SUSE-SU-2025:4290-1 |
| SLE Micro 5.4 | cups | 2.2.7-150000.3.77.1 | SUSE-SU-2025:4425-1, SUSE-SU-2025:4319-1, SUSE-SU-2025:4290-1 |
| SLE Micro 5.3 | cups | 2.2.7-150000.3.77.1 | SUSE-SU-2025:4425-1, SUSE-SU-2025:4319-1, SUSE-SU-2025:4290-1 |
| SLE Micro 5.2 | cups | 2.2.7-150000.3.77.1 | SUSE-SU-2025:4425-1, SUSE-SU-2025:4319-1, SUSE-SU-2025:4290-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | cups | 2.4.16-1.1 | openSUSE-SU-2026:10088-1 |
| openSUSE Leap 16.0 | cups | 2.4.16-160000.1.1 | openSUSE-SU-2026:20172-1 |
| openSUSE Leap 15.6 | cups | 2.2.7-150000.3.77.1 | SUSE-SU-2025:4425-1, SUSE-SU-2025:4319-1, SUSE-SU-2025:4290-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | cups | 2.4.16-r0 | — |
| Alpine v3.23 | cups | 2.4.16-r0 | — |
| Alpine v3.22 | cups | 2.4.16-r0 | — |
| Alpine v3.21 | cups | 2.4.16-r0 | — |
| Alpine v3.20 | cups | 2.4.16-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | cups +7 | 1:2.4.14-1.amzn2023.0.2 | ALAS2023-2025-1320 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | cups | 2.4.16-1 | — |
| Azure Linux 2 (CBL-Mariner) | cups | 2.3.3op2-11 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | cups +7 | 1:2.4.10-12.el10_1.2 | ELSA-2026-0464 |
| Oracle Linux 9 | cups +7 | 1:2.3.3op2-34.el9_7.2 | ELSA-2026-0312 |
| Oracle Linux 8 | cups +6 | 1:2.2.6-66.el8_10 | ELSA-2026-0596 |
Advisories 27
- RHSA-2026:0312 Red Hat Security Advisory: cups security update Red Hat Security Advisories (RHSA) · Nov 14, 2026
- ALSA-2026:0312 Moderate: cups security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:0464 Moderate: cups security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:0596 Moderate: cups security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:8814 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- WID-SEC-2025-2693 CUPS: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Sep 3, 2026
- RHSA-2026:0596 Red Hat Security Advisory: cups security update Red Hat Security Advisories (RHSA) · Sep 2, 2026
- RHSA-2026:0464 Red Hat Security Advisory: cups security update Red Hat Security Advisories (RHSA) · Sep 2, 2026
- WID-SEC-2026-1730 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Jul 16, 2026
- USN-7912-2 cups vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-7912-1 cups vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2026:20172-1 Security update for cups SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10088-1 cups-2.4.16-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20231-1 Security update for cups SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20229-1 Security update for cups SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4319-1 Security update for cups SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4425-1 Security update for cups SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20528-1 Security update for cups SUSE / openSUSE Security Updates · Mar 4, 2026
- SUSE-SU-2026:20535-1 Security update for cups SUSE / openSUSE Security Updates · Mar 4, 2026
- SUSE-SU-2025:4290-1 Security update for cups SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2026:0464 Moderate: cups security update Rocky Linux Security Advisories · Jan 15, 2026
- RLSA-2026:0596 Moderate: cups security update Rocky Linux Security Advisories · Jan 15, 2026
- RLSA-2026:0312 Moderate: cups security update Rocky Linux Security Advisories · Jan 14, 2026
- ELSA-2026-0596 Moderate: cups security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jan 14, 2026
- ELSA-2026-0464 Moderate: cups security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jan 12, 2026
- ELSA-2026-0312 Moderate: cups security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jan 8, 2026
- ALAS2023-2025-1320 Moderate: cups security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 7, 2026