Vulnerability · Published May 20, 2026 · Assigned by hp
CVE-2026-8631HP Linux Imaging and Printing Software – Potential Escalation of Privilege and Arbitrary Code Execution
Critical 9.8
In plain English
A critical-severity heap buffer overflow in HP Linux Imaging and Printing Software from HP Inc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.8%top 21.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A potential security vulnerability has been identified in the HP Linux Imaging and Printing Software. This potential vulnerability may allow escalation of privileges and/or arbitrary code execution via an integer overflow in the hpcups processing path when handling crafted print data.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | hplip | 3.23.12-10.el10_2.5 | ALSA-2026:39976 |
| AlmaLinux:8 | hplip | 3.18.4-13.el8_10.alma.1 | ALSA-2026:26335 |
| AlmaLinux:8 | hplip | 3.18.4-14.el8_10.alma.1 | ALSA-2026:40894 |
| AlmaLinux:9 | hplip | 3.21.2-6.el9_8.4.alma.1 | ALSA-2026:26297 |
| AlmaLinux:9 | hplip | 3.21.2-6.el9_8.5.alma.1 | ALSA-2026:40831 |
| AlmaLinux:10 | hplip-common | 3.23.12-10.el10_2.5 | ALSA-2026:39976 |
| AlmaLinux:8 | hplip-common | 3.18.4-13.el8_10.alma.1 | ALSA-2026:26335 |
| AlmaLinux:8 | hplip-common | 3.18.4-14.el8_10.alma.1 | ALSA-2026:40894 |
| AlmaLinux:9 | hplip-common | 3.21.2-6.el9_8.4.alma.1 | ALSA-2026:26297 |
| AlmaLinux:9 | hplip-common | 3.21.2-6.el9_8.5.alma.1 | ALSA-2026:40831 |
| AlmaLinux:8 | hplip-gui | 3.18.4-14.el8_10.alma.1 | ALSA-2026:40894 |
| AlmaLinux:8 | hplip-gui | 3.18.4-13.el8_10.alma.1 | ALSA-2026:26335 |
| AlmaLinux:10 | hplip-libs | 3.23.12-10.el10_2.5 | ALSA-2026:39976 |
| AlmaLinux:8 | hplip-libs | 3.18.4-13.el8_10.alma.1 | ALSA-2026:26335 |
| AlmaLinux:8 | hplip-libs | 3.18.4-14.el8_10.alma.1 | ALSA-2026:40894 |
| AlmaLinux:9 | hplip-libs | 3.21.2-6.el9_8.4.alma.1 | ALSA-2026:26297 |
| AlmaLinux:9 | hplip-libs | 3.21.2-6.el9_8.5.alma.1 | ALSA-2026:40831 |
| AlmaLinux:10 | libsane-hpaio | 3.23.12-10.el10_2.5 | ALSA-2026:39976 |
| AlmaLinux:8 | libsane-hpaio | 3.18.4-14.el8_10.alma.1 | ALSA-2026:40894 |
| AlmaLinux:8 | libsane-hpaio | 3.18.4-13.el8_10.alma.1 | ALSA-2026:26335 |
| AlmaLinux:9 | libsane-hpaio | 3.21.2-6.el9_8.5.alma.1 | ALSA-2026:40831 |
| AlmaLinux:9 | libsane-hpaio | 3.21.2-6.el9_8.4.alma.1 | ALSA-2026:26297 |
| Debian:12 | hplip | 3.22.10+dfsg0-2+deb12u1 | DEBIAN-CVE-2026-8631 |
| Debian:13 | hplip | 3.22.10+dfsg0-8.1+deb13u1 | DEBIAN-CVE-2026-8631 |
| Rocky Linux:10 | hplip | 0:3.23.12-10.el10_2.4 | RLSA-2026:26228 |
| Rocky Linux:8 | hplip | 0:3.18.4-13.el8_10 | RLSA-2026:26335 |
| Rocky Linux:9 | hplip | 0:3.21.2-6.el9_8.4 | RLSA-2026:26297 |
| Ubuntu:22.04:LTS | hplip | 3.21.12+dfsg0-1ubuntu0.1 | UBUNTU-CVE-2026-8631 |
| Ubuntu:22.04:LTS | hplip | 3.21.12+dfsg0-1ubuntu0.1 | USN-8483-1 |
| Ubuntu:24.04:LTS | hplip | 3.23.12+dfsg0-0ubuntu5.1 | UBUNTU-CVE-2026-8631 |
| Ubuntu:24.04:LTS | hplip | 3.23.12+dfsg0-0ubuntu5.1 | USN-8483-1 |
| Ubuntu:25.10 | hplip | 3.24.4+dfsg0-0ubuntu5.2 | UBUNTU-CVE-2026-8631 |
| Ubuntu:25.10 | hplip | 3.24.4+dfsg0-0ubuntu5.2 | USN-8483-1 |
| Ubuntu:26.04:LTS | hplip | 3.24.4+dfsg0-0ubuntu8.1 | UBUNTU-CVE-2026-8631 |
| Ubuntu:26.04:LTS | hplip | 3.24.4+dfsg0-0ubuntu8.1 | USN-8483-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HP Inc | HP Linux Imaging and Printing Software | 0 – before 3.26.4 |
Weakness: CWE-122, CWE-190 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://support.hp.com/us-en/document/ish_14942099-14942126-16/hpsbpi04118
- https://access.redhat.com/security/cve/CVE-2026-8631 vdb-entry, x_refsource_REDHAT
- RHBZ#2480300 issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8631.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:48606 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:26228 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:26335 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:48960 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:48961 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:48959 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:48603 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:48586 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:48171 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:26297 vendor-advisory, x_refsource_REDHAT