Vulnerability · Published Sep 16, 2026 · Assigned by hp
CVE-2026-91104HP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities
Critical 9.3
In plain English
A critical-severity heap buffer overflow in HP Linux Imaging and Printing Software (HPLIP) 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 1.1% (higher than 65% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification under certain conditions.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | hplip | 3.26.6-1.el10_2.3 | ALSA-2026:82883 |
| AlmaLinux:8 | hplip | 3.26.6-3.el8_10 | ALSA-2026:82295 |
| AlmaLinux:9 | hplip | 3.26.6-1.el9_8.3 | ALSA-2026:82882 |
| AlmaLinux:10 | hplip-common | 3.26.6-1.el10_2.3 | ALSA-2026:82883 |
| AlmaLinux:8 | hplip-common | 3.26.6-3.el8_10 | ALSA-2026:82295 |
| AlmaLinux:9 | hplip-common | 3.26.6-1.el9_8.3 | ALSA-2026:82882 |
| AlmaLinux:8 | hplip-gui | 3.26.6-3.el8_10 | ALSA-2026:82295 |
| AlmaLinux:10 | hplip-libs | 3.26.6-1.el10_2.3 | ALSA-2026:82883 |
| AlmaLinux:8 | hplip-libs | 3.26.6-3.el8_10 | ALSA-2026:82295 |
| AlmaLinux:9 | hplip-libs | 3.26.6-1.el9_8.3 | ALSA-2026:82882 |
| AlmaLinux:10 | libsane-hpaio | 3.26.6-1.el10_2.3 | ALSA-2026:82883 |
| AlmaLinux:8 | libsane-hpaio | 3.26.6-3.el8_10 | ALSA-2026:82295 |
| AlmaLinux:9 | libsane-hpaio | 3.26.6-1.el9_8.3 | ALSA-2026:82882 |
| Alpine:v3.24 | hplip | 3.26.6-r0 | ALPINE-CVE-2026-91104 |
| Debian:12 | hplip | no fix listed | DEBIAN-CVE-2026-91104 |
| Debian:13 | hplip | no fix listed | DEBIAN-CVE-2026-91104 |
| Rocky Linux:10 | hplip | 0:3.26.6-1.el10_2.3 | RLSA-2026:82883 |
| Rocky Linux:8 | hplip | 0:3.26.6-3.el8_10 | RLSA-2026:82295 |
| Rocky Linux:9 | hplip | 0:3.26.6-1.el9_8.3 | RLSA-2026:82882 |
| Ubuntu:22.04:LTS | hplip | no fix listed | UBUNTU-CVE-2026-91104 |
| Ubuntu:24.04:LTS | hplip | no fix listed | UBUNTU-CVE-2026-91104 |
| Ubuntu:26.04:LTS | hplip | no fix listed | UBUNTU-CVE-2026-91104 |
| Ubuntu:26.10 | hplip | no fix listed | UBUNTU-CVE-2026-91104 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HP Inc. | HP Linux Imaging and Printing Software (HPLIP) | 0 – before 3.26.6 |
Weakness: CWE-122 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N