CVE Explorer
CVE-2026-32235
Backstage is an open framework for building developer portals. Prior to 0.27.1, the experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafted redirect URI can pass the allowlist validation while resolving to an attacker-controlled host. If a victim approves the resultin
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"plugin-auth-backend","vendor":"@backstage","versions":[{"status":"affected","version":"< 0.27.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:d70fdffa08d9ac3281a7fcbdf951870d722ccfc2abf373568f18643e8d0add1e · sha256:f758cf941e8c8cf5… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:d70fdffa08d9ac3281a7fcbdf951870d722ccfc2abf373568f18643e8d0add1e · sha256:f758cf941e8c8cf5… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:d70fdffa08d9ac3281a7fcbdf951870d722ccfc2abf373568f18643e8d0add1e · sha256:f758cf941e8c8cf5… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/backstage/backstage/security/advisories/GHSA-wqvh-63mv-9w92","tags":["x_refsource_CONFIRM"],"url":"https://github.com/backstage/backstage/security/advisories/GHSA-wqvh-63mv-9w92"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d70fdffa08d9ac3281a7fcbdf951870d722ccfc2abf373568f18643e8d0add1e · sha256:f758cf941e8c8cf5… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.