A AegiFlow
HIGHCVSS 7.5EPSS 0.4%

CVE-2026-100354

CVE-2026-100354 updated by NVD

Published
2026-10-15
Modified
2026-10-17
EPSS percentile
36%
Sources
github-advisory, nvd

Summary

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.149.0, runtime request, response, and direct schema validation lacks cycle detection when an allOf, anyOf, or oneOf chain refers back to an ancestor schema, even though loading and document validation accept the circular reference. A request or response that reaches the affected schema causes unbounded recursion in Schema.visitJSON or openapi3filter.decodeValue and exhausts the Go goroutine stack. The resulting fatal stack overflow cannot be caught with recover and terminates the entire process, including unrelated requests. This issue is fixed in version 0.149.0.

Affected packages

EcosystemPackageAffected versionsFixed versions
Gogithub.com/getkin/kin-openapi—0.149.0

Remediation: Upgrade to 0.149.0 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.