CVE-2025-6508

MediumCVSS 4.3

Published: 06/08/2026(UTC)Updated: 29/09/2026(UTC)Translated: 07/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.28%

18th percentile - higher than 18% of all known CVEs

Summary

The Swagger UI Try-out console within the API Publisher documentation allows an external Swagger API definition URL to be loaded, overriding the existing API definitions within the Publisher portal. By exploiting this vulnerability, malicious actors can deceive users into interacting with these overwritten API definitions, potentially leading to exposure of sensitive information or initiation of unintended requests to backend services.

Risk Assessment

Users can be tricked into interacting with fake API definitions, leading to data leakage or unauthorized actions in backend systems.

Recommendation

Update API Publisher to a version that prevents loading external API definitions in the Try-out console, or restrict access to this feature.

Other vulnerabilities in API Publisher

CVE-2026-3416Medium
The API Publisher component previously used a non-cryptographic pseudorandom number generator (PRNG) to create shared secrets for Webhook HMAC validation. This PRNG lacks sufficient entropy for security-sensitive operations, allowing a sophisticated attacker to predict future secrets. This enables malicious actors to forge event payloads with valid HMAC signatures, bypassing the API Gateway's authenticity verification.

Original NVD description (English source)

The Swagger UI Try-out console within the API Publisher documentation allows an external Swagger API definition URL to be loaded, overriding the existing API definitions within the Publisher portal. By exploiting this vulnerability, malicious actors can deceive users into interacting with these overwritten API definitions. This could lead to the exposure of sensitive information or the initiation of unintended requests to backend services.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS