Cloudanix VulnDB

CVE-2026-53508

None

CVSS

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EPSS

0.5%

Published

Aug 31, 2026

CISA due date

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The record

oasdiff is a command-line and Go package that compares and detects breaking changes in OpenAPI specs. From version 1.13.2 through version 1.18.0, oasdiff did not enforce --allow-external-refs=false (library: openapi3.Loader.IsExternalRefsAllowed = false) when loading a spec from a git revision (the rev:path form, e.g. main:openapi.yaml). External $refs were resolved on that load path even when external refs were explicitly disabled, so the mitigation silently did not apply there. This issue has been patched in version 1.18.1.

Affected packages

Ecosystem Package Introduced Fixed

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