What’s Vulnerable › Vulnerabilities
CVE-2026-89314: Quadratic-time key_ops duplicate check lets a sub-1 MB JWKS body pin a CPU core for ~15 s
- Severity: medium (CVSS 6.9 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-23 · updated 2026-10-23
- Weakness: CWE-407
Description
`jwkFields.CheckConsistency` detected duplicate `key_ops` 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.
Affected products
- Eclipse Foundation Eclipse KeyPont - GOSE: from 0.7.3 through 0.13.0-rc1; before 1.0.0-rc4 — fixed in 1.0.0-rc4
How to fix
Upgrade to a fixed version: Eclipse Foundation Eclipse KeyPont - GOSE 1.0.0-rc4. Check the vendor advisory for mitigations.
References
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