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CVE-2026-91102· NVD / CVE Program· CNA hp

HP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities

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.

HighCVSS 8.4 · v4.0—No exploit Fix available
Published
Sep 16, 2026
Updated
Sep 21, 2026
EPSS
0.8% · 55th percentile
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Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
33 / 40 · 8.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · hp
8.4
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
hplinux imaging and printing

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • hp linux imaging and printingbefore 3.26.6

Versions reported by the vendor

Affected version ranges reported by the assigning authority (hp). Independent of NVD's CPE analysis and usually ahead of it.

  • HP Inc. HP Linux Imaging and Printing Software (HPLIP)

    • before 3.26.6affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12hplipall versions—
openSUSE:Tumbleweedhplipbefore 3.26.6-1.13.26.6-1.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOShplipbefore 3.26.6-150400.3.25.13.26.6-150400.3.25.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7hplipbefore 3.26.6-150700.4.11.13.26.6-150700.4.11.1
SUSE:Linux Enterprise Server 12 SP5-LTSShplipbefore 3.26.6-3.14.23.26.6-3.14.2
SUSE:Linux Enterprise Server 15 SP6-LTSShplipbefore 3.26.6-150600.4.15.13.26.6-150600.4.15.1

Same product

hp: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-91106HP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities
    37Monitor
  • CVE-2026-91104HP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities
    37Monitor
  • CVE-2026-8631HP Linux Imaging and Printing Software – Potential Escalation of Privilege and Arbitrary Code Execution
    37Monitor
  • CVE-2026-8632HP Linux Imaging and Printing Software – Potential Escalation of Privilege and Arbitrary Code Execution
    35Monitor
  • CVE-2026-91105HP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities
    34Monitor
  • CVE-2026-91098HP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities
    34Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
opensuse:hplip3.26.6-1.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:hplip3.26.6-3.14.2 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days+1% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-911000 days apartHP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities
    27Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
A
Scope
X

Weakness class (CWE)

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

The bug in code

The whole CWE-78 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const host = req.body.host;exec("ping -c 1 " + host, onResult);

Fixed

ts
const host = req.body.host;if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);execFile("ping", ["-c", "1", host], onResult);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records