{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53508","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-09T17:05:25.059Z","datePublished":"2026-08-31T18:52:12.213Z","dateUpdated":"2026-08-31T18:58:08.849Z"},"containers":{"cna":{"title":"oasdiff does not enforce --allow-external-refs=false on the git-revision load path (SSRF / local file read)","problemTypes":[{"descriptions":[{"cweId":"CWE-73","lang":"en","description":"CWE-73: External Control of File Name or Path","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-693","lang":"en","description":"CWE-693: Protection Mechanism Failure","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/oasdiff/oasdiff/security/advisories/GHSA-2jcc-mxv7-p3f9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/oasdiff/oasdiff/security/advisories/GHSA-2jcc-mxv7-p3f9"},{"name":"https://github.com/oasdiff/oasdiff/pull/832","tags":["x_refsource_MISC"],"url":"https://github.com/oasdiff/oasdiff/pull/832"},{"name":"https://github.com/oasdiff/oasdiff/pull/974","tags":["x_refsource_MISC"],"url":"https://github.com/oasdiff/oasdiff/pull/974"},{"name":"https://github.com/oasdiff/oasdiff/pull/975","tags":["x_refsource_MISC"],"url":"https://github.com/oasdiff/oasdiff/pull/975"}],"affected":[{"vendor":"oasdiff","product":"oasdiff","versions":[{"version":">= 1.13.2, < 1.18.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-31T18:52:12.213Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-2jcc-mxv7-p3f9","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-31T18:57:49.502659Z","id":"CVE-2026-53508","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-31T18:58:08.849Z"}}]}}