Critical [CVE-2026-8631] Arbitrary code execution and privilege escalation via integer overflow in hpcups
This critical-severity Red Hat Linux advisory covers CVE-2026-8631 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.
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Summary
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.
A remote attacker who can submit print job content to the hpcups filter path may achieve arbitrary code execution or privilege escalation on systems using HPLIP for printing. Red Hat severity: Important — CVSS 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Weakness: CWE-190.
Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Enterprise Linux 6.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 25 days ago·verify at source
- hplip-0:3.23.12-10.el10_2.4
- hplip-0:3.23.12-8.el10_0.2
- hplip-0:3.18.4-13.el8_10
- hplip-0:3.18.4-9.el8_4.1
- hplip-0:3.18.4-9.el8_6.1
- hplip-0:3.18.4-9.el8_8.1
- hplip-0:3.21.2-6.el9_8.4
- hplip-0:3.21.2-6.el9_2.1
- hplip-0:3.21.2-6.el9_4.1
- hplip-0:3.21.2-6.el9_6.1
- RHSA-2026:26228
- RHSA-2026:48606
- RHSA-2026:26335
- RHSA-2026:48960
- RHSA-2026:48961
- RHSA-2026:48959
- RHSA-2026:26297
- RHSA-2026:48603
- RHSA-2026:48586
- RHSA-2026:48171
Official advisory · high-confidence parse· fetched 25 days ago·verify at source
Mitigation
Upgrade to a fixed release: hplip-0:3.23.12-10.el10_2.4, hplip-0:3.23.12-8.el10_0.2, hplip-0:3.18.4-13.el8_10, hplip-0:3.18.4-9.el8_4.1, hplip-0:3.18.4-9.el8_6.1, hplip-0:3.18.4-9.el8_8.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 25 days ago·verify at source
Discussion(0)
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