oasdiff-action vulnerabilities

Latest oasdiff-action CVEs

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1. CVE-2026-53507 oasdiff actions resolve external $refs by default, enabling SSRF and disclosure of structured files on pull-request runs

   Published 2026-08-31

   High·CVSS 8.3

   oasdiff-action is a GitHub Action that detects breaking changes in OpenAPI specs and post a review on every pull request. Before version 0.0.51, the oasdiff actions resolved external $refs in the OpenAPI spec by default (allow-external-refs: true). When an action runs on a pull r...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.