{"schema_version":1,"title":"Backstage Plugin-Auth-Backend vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 5 vulnerabilities in Backstage Plugin-Auth-Backend: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-73563, was published on 24 July 2026.","url":"https://junglewise.ai/threats/technologies/plugin-auth-backend","json_url":"https://junglewise.ai/threats/technologies/plugin-auth-backend.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/plugin-auth-backend","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":5,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":2,"last_365_days":4},"latest":[{"cve":"CVE-2026-73563","cvss":3.1,"epss":0.0028,"slug":"cve-2026-73563-backstage-plugin-auth-backend-oauth-redirect-uri-allowlist-bypass","title":"Backstage plugin-auth-backend OAuth redirect_uri allowlist bypass","severity":"low","exploited":false,"published_at":"2026-07-24T16:20:59+00:00","url":"https://junglewise.ai/threats/cve-2026-73563-backstage-plugin-auth-backend-oauth-redirect-uri-allowlist-bypass"},{"cvss":4.7,"slug":"backstage-backstage-plugin-auth-backend-oauth-allowlist-bypass-fd6ff5e7","title":"Backstage @backstage/plugin-auth-backend OAuth allowlist bypass","severity":"medium","exploited":false,"published_at":"2026-07-24T16:20:59+00:00","url":"https://junglewise.ai/threats/backstage-backstage-plugin-auth-backend-oauth-allowlist-bypass-fd6ff5e7"},{"cve":"CVE-2026-32236","cvss":4,"epss":0.0047,"slug":"cve-2026-32236-backstage-auth-backend-ssrf-in-cimd-metadata-fetch","title":"Backstage auth-backend SSRF in CIMD metadata fetch","severity":"medium","exploited":false,"published_at":"2026-03-12T14:51:02+00:00","url":"https://junglewise.ai/threats/cve-2026-32236-backstage-auth-backend-ssrf-in-cimd-metadata-fetch"},{"cve":"CVE-2026-32235","cvss":3.1,"epss":0.0023,"slug":"cve-2026-32235-backstage-auth-backend-oauth-redirect-uri-allowlist-bypass","title":"Backstage Auth Backend OAuth redirect URI allowlist bypass","severity":"low","exploited":false,"published_at":"2026-03-12T14:50:59+00:00","url":"https://junglewise.ai/threats/cve-2026-32235-backstage-auth-backend-oauth-redirect-uri-allowlist-bypass"},{"cve":"CVE-2021-43776","cvss":3.1,"epss":0.0068,"slug":"cve-2021-43776-backstage-plugin-auth-backend-reflected-cross-site-scripting","title":"Backstage plugin-auth-backend reflected cross-site scripting","severity":"low","exploited":false,"published_at":"2021-12-01T18:29:21+00:00","url":"https://junglewise.ai/threats/cve-2021-43776-backstage-plugin-auth-backend-reflected-cross-site-scripting"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Backstage Plugin-Scaffolder-Backend","slug":"plugin-scaffolder-backend","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/plugin-scaffolder-backend"},{"name":"Backstage Scaffolder Backend Plugin","slug":"scaffolder-backend-plugin","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/scaffolder-backend-plugin"},{"name":"Backstage TechDocs","slug":"techdocs","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/techdocs"}],"technology":{"hub":true,"name":"Backstage Plugin-Auth-Backend","slug":"plugin-auth-backend","vendor":{"name":"Backstage","slug":"backstage","url":"https://junglewise.ai/threats/vendors/backstage"},"aliases":[],"category":"library","homepage":"https://backstage.io/","repo_url":"https://github.com/backstage/backstage","description":"A software library for implementing authentication backends within the Backstage developer portal framework.","url":"https://junglewise.ai/threats/technologies/plugin-auth-backend"},"most_severe":[{"cvss":4.7,"slug":"backstage-backstage-plugin-auth-backend-oauth-allowlist-bypass-fd6ff5e7","title":"Backstage @backstage/plugin-auth-backend OAuth allowlist bypass","severity":"medium","exploited":false,"published_at":"2026-07-24T16:20:59+00:00","url":"https://junglewise.ai/threats/backstage-backstage-plugin-auth-backend-oauth-allowlist-bypass-fd6ff5e7"},{"cve":"CVE-2026-32236","cvss":4,"epss":0.0047,"slug":"cve-2026-32236-backstage-auth-backend-ssrf-in-cimd-metadata-fetch","title":"Backstage auth-backend SSRF in CIMD metadata fetch","severity":"medium","exploited":false,"published_at":"2026-03-12T14:51:02+00:00","url":"https://junglewise.ai/threats/cve-2026-32236-backstage-auth-backend-ssrf-in-cimd-metadata-fetch"},{"cve":"CVE-2021-43776","cvss":3.1,"epss":0.0068,"slug":"cve-2021-43776-backstage-plugin-auth-backend-reflected-cross-site-scripting","title":"Backstage plugin-auth-backend reflected cross-site scripting","severity":"low","exploited":false,"published_at":"2021-12-01T18:29:21+00:00","url":"https://junglewise.ai/threats/cve-2021-43776-backstage-plugin-auth-backend-reflected-cross-site-scripting"},{"cve":"CVE-2026-73563","cvss":3.1,"epss":0.0028,"slug":"cve-2026-73563-backstage-plugin-auth-backend-oauth-redirect-uri-allowlist-bypass","title":"Backstage plugin-auth-backend OAuth redirect_uri allowlist bypass","severity":"low","exploited":false,"published_at":"2026-07-24T16:20:59+00:00","url":"https://junglewise.ai/threats/cve-2026-73563-backstage-plugin-auth-backend-oauth-redirect-uri-allowlist-bypass"},{"cve":"CVE-2026-32235","cvss":3.1,"epss":0.0023,"slug":"cve-2026-32235-backstage-auth-backend-oauth-redirect-uri-allowlist-bypass","title":"Backstage Auth Backend OAuth redirect URI allowlist bypass","severity":"low","exploited":false,"published_at":"2026-03-12T14:50:59+00:00","url":"https://junglewise.ai/threats/cve-2026-32235-backstage-auth-backend-oauth-redirect-uri-allowlist-bypass"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}