CVE-2026-91100

Publication date 16 September 2026

Last updated 10 November 2026

Ubuntu priority

Cvss 3 Severity Score

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
hplip	26.10 stonking	Not affected
	26.04 LTS resolute	Not affected
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Fixed in 3.17.10+repack0-5ubuntu0.1~esm2
	16.04 LTS xenial	Fixed in 3.16.3+repack0-1ubuntu0.1~esm2

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Notes

mrmajumder

Based on CWE number and CVSS score, this is likely the shell quotation issue in pstotiff, which was already fixed by Replace-rubbish-pstotiff-filter.patch in Focal and later

Severity score breakdown

CVSS version:

Base score 6.8 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Attack requirements	None
Privileges required	None
User interaction	Active
Vulnerable system - Confidentiality impact	Low
Vulnerable system - Integrity impact	High
Vulnerable system - Availability impact	Low
Subsequent system - Confidentiality impact	None
Subsequent system - Integrity impact	None
Subsequent system - Availability impact	None

Scores

Parameter	Value
Base score	6.8 · Medium
Base + Threat score	-
Base + Environmental score	-
Base + Threat + Environmental score	-

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N

Base score 9.8 · Critical