CVE-2026-89314 Details
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.
A denial-of-service vulnerability has been identified in the Eclipse KeyPont library, specifically in the JWK (JSON Web Key) processing component. The issue arises within the `jwkFields.CheckConsistency` function, which validates `key_ops` entries. The validation process uses a pairwise nested loop, leading to a quadratic increase in processing time relative to the number of entries. This means that as the entry count grows, the validation time increases exponentially. The vulnerability is triggered during the unmarshalling of JWK and JWKS (JSON Web Key Set) documents. A maliciously crafted JWKS document, even if modestly sized, can monopolize a CPU core for several seconds, causing significant performance degradation.
Users can upgrade to `github.com/eclipse-keypont/gose` version `v1.0.0-rc4` or later. For those still using `github.com/ThalesGroup/gose`, it is necessary to change the module path to `github.com/eclipse-keypont/gose` version `v1.0.0-rc4`, as the `ThalesGroup` version is still vulnerable.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 23, 2026CISA-ADP
Assessed Nov 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/eclipse-keypont/gose/security/advisories/GHSA-r56w-f43c-828p | CISA-ADP | AdvisoryRemedyVendor |
| https://github.com/eclipse-keypont/gose/security/advisories/GHSA-r56w-f43c-828p | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-407 | Inefficient Algorithmic Complexity | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Eclipse KeyPont gose | < 1.0.0-rc4 (semver) |
CPE
Remediation
| |
| ThalesGroup gose | >= 0.7.3, <= 0.13.0-rc1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 2, 2026 | CVE Modified | CISA-ADP |
| Oct 23, 2026 | New CVE Received | [email protected] |