CVE-2026-63462
CVE-2026-63462 · Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the shared OpenAPI validation error path in src/lib/error/bad-data-error.ts passes a raw request value from lodash.get to JSON.stringify in genericErrorMessage and fromOpenApiValidationErrors without guarding stack exhaustion. An unauthenticated attacker can send a roughly 10 KB JSON value nested thousands of levels deep to POST /edge/validate, POST /edge/issue-token, or another OpenAPI-validated endpoint, causing RangeError: Maximum call stack size exceeded in openAPIValidationMiddleware and terminating the Node process because no uncaughtException handler recovers it. Replaying the request can sustain a complete service outage. This issue is fixed in versions 7.5.2, 7.6.5, and 8.0.2.
CVSS 7.5 · Élevée · EPSS 0,7% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
unleash
- Versions du logiciel
- < 7.5.2: Concernée
- >= 7.6.0, < 7.6.5: Concernée
- >= 8.0.0, < 8.0.2: Concernée
Aucun correctif publié
unleash-server npm
- Plages de versions concernées
- SEMVER: < 7.5.2
Mettez à jour vers 7.5.2
unleash-server npm
- Plages de versions concernées
- SEMVER: ≥ 7.6.0, < 7.6.5
Mettez à jour vers 7.6.5
unleash-server npm
- Plages de versions concernées
- SEMVER: ≥ 8.0.0, < 8.0.2
Mettez à jour vers 8.0.2
Sources originales
- https://github.com/Unleash/unleash/security/advisories/GHSA-r5pq-6chh-j3xp
- https://github.com/Unleash/unleash/commit/b0e4da63249a9403bc209e0581db223326cb8dcf
- https://github.com/Unleash/unleash/commit/d45f99df924c0d24747b3e45e46fcda7dcd3c1c1
- https://github.com/Unleash/unleash/commit/d862562a5ab8f2d1e40f6519c64cf0b4fdaf806d
- https://github.com/Unleash/unleash/releases/tag/v7.5.2
- https://github.com/Unleash/unleash/releases/tag/v7.6.5
- https://github.com/Unleash/unleash/releases/tag/v8.0.2
- https://nvd.nist.gov/vuln/detail/CVE-2026-63462