Quick answers
- Is CVE-2026-91101 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91101 being exploited in the wild.
- How severe is CVE-2026-91101?
- Critical severity, with a CVSS score of 9.8, published 16 September 2026.
- Which products and versions are affected?
- HP HPLIP.
- Is there a fix for CVE-2026-91101?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-91101 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-91101?
- Check whether you run HPLIP, Hp Linux Imaging or Hp Printing. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
HP HPLIP contains multiple vulnerabilities affecting several software components, including potential remote code execution, privilege escalation, denial of service, information disclosure, and unauthorized file modification flaws. The vulnerabilities are externally reported and have been remediated by HP. Attack vectors and specific preconditions vary by flaw; however, given the CVSS score of 9.8, at least one vulnerability is likely network-accessible with minimal or no authentication required. Patches are available through HP's support documentation.
Affected products
- HP HPLIP
Timeline
- 2026-09-16: disclosed