CVE-2026-91102 HP Inc. CVE debrief

Who should care

Defenders responsible for Linux environments, particularly those using HP's HPLIP software, should assess exposure and prioritize remediation. This includes operators managing Linux systems with HPLIP installed, vulnerability management teams, and security teams responsible for monitoring and defending these environments.

Why it matters

CVE-2026-91102 is a high-severity vulnerability in HP's Linux Imaging and Printing (HPLIP) software that could enable various malicious activities. Defenders should prioritize verifying and applying HP's remediation, assessing exposure in Linux environments, and monitoring for potential exploitation attempts.

• Potential remote code execution
• Potential privilege escalation
• Potential denial of service attacks
• Potential information disclosure

Technical summary

The vulnerability affects HP's Linux Imaging and Printing (HPLIP) software, potentially enabling remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification under certain conditions. The CVSS score for this vulnerability is 8.4, indicating a high severity level. Defenders should prioritize verifying and applying HP's remediation for HPLIP, assessing exposure in Linux environments, and monitoring for potential exploitation attempts. The vulnerability has been identified and remediated by HP.

Defensive priority

Defenders should prioritize verifying and applying HP's remediation for HPLIP, assessing exposure in Linux environments, and monitoring for potential exploitation attempts.

Recommended defensive actions

• Verify and apply HP's remediation for HPLIP
• Assess exposure in Linux environments
• Monitor for potential exploitation attempts
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions, retest remediated assets
• Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score of 8.4 and potential impacts. HP has provided a vendor advisory with remediation information. The vulnerability affects HP's Linux Imaging and Printing (HPLIP) software. Defenders should verify and apply HP's remediation, assess exposure in Linux environments, and monitor for potential exploitation attempts. The CVE Program and NVD offer official records and assessments.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.