CVE-2026-91098 HP Inc. CVE debrief

Who should care

Defenders responsible for systems using HPLIP, especially those with internet-exposed printing services, should assess exposure and potential impact. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify HPLIP version and exposure, review system logs, and implement compensating controls as necessary.

Why it matters

Defenders should prioritize verifying exposure and assessing potential impact, focusing on systems using HPLIP, especially those with internet-exposed printing services, due to potential vulnerabilities enabling remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification.

• Potential remote code execution
• Potential privilege escalation
• Potential denial of service or information disclosure
• Verification of HPLIP version and exposure

Technical summary

Multiple externally reported vulnerabilities within HPLIP 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. The vulnerabilities are addressed in HPLIP version 3.26.6 or later. These vulnerabilities impact systems using HPLIP, especially those with internet-exposed printing services, and defenders should prioritize verifying exposure and assessing potential impact.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact, focusing on systems using HPLIP, especially those with internet-exposed printing services.

Recommended defensive actions

• Verify HPLIP version and ensure it is up-to-date
• Assess exposure of HPLIP installations, especially those with internet-exposed printing services
• Review system logs for potential exploitation attempts
• Implement compensating controls, such as network segmentation or access restrictions
• Track exceptions and retest remediated assets
• Review relevant monitoring, detection, and logs for exposed assets
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on multiple externally reported vulnerabilities within HPLIP, affecting several software components that could potentially enable remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification under certain conditions.

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.