CVE-2026-53508

oasdiff (a Go command-line tool and package for comparing OpenAPI specs, hosted at github.com/oasdiff/oasdiff ) failed to enforce the --allow-external-refs=false flag on the git-revision load path (rev:path form, e.g. main:openapi.yaml). From version 1.13.2 through 1.18.0 , external $refs were re...

CVE-2026-53508 oasdiff does not enforce --allow-external-refs=false on the git-revision load path (SSRF / local file read)

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...

GHSA-2JCC-MXV7-P3F9 oasdiff does not enforce --allow-external-refs=false on the git-revision load path (SSRF / local file read)

Summary From v1.13.2 through v1.18.0, 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 ref...