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HIGH

CVE-2026-91866

CVSS v3

7.5

HIGH

EPSS Score

0.7 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A specially crafted pair of WS-Policy documents can force Neethi's policy-intersection to do exponential amounts of work, pinning the CPU for a long time (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes this issue.

Technical details

Published
2026-09-21
Last Modified
2026-09-21

Frequently asked questions

What is CVE-2026-91866?

A specially crafted pair of WS-Policy documents can force Neethi's policy-intersection to do exponential amounts of work, pinning the CPU for a long time (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes this issue.

Is CVE-2026-91866 actively exploited?

Active exploitation of CVE-2026-91866 has not been confirmed. Its EPSS score was 0.7% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-91866?

CVE-2026-91866 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2026-91866 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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