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6.9 Medium

jwkFields.CheckConsistency detected duplicate keyops entries with a pairwise nested loop, making validation cost grow with the square of…

CVE-2026-89314

jwkFields.CheckConsistency detected duplicate keyops entries with a pairwise nested loop, making validation cost grow with the square of the entry count. Because the check runs on every JWK and JWKS unmarshal, a modestly sized but hostile JWKS document could occupy a CPU core for many seconds.

Assessment

CVSS
6.9 (v4.0)
Severity
Medium
EPSS
0.25% chance of exploitation in the next 30 days
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
23 October 2026
Last updated
2 November 2026
Assigner
eclipse

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

At the source

References

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