CVE Explorer
CVE-2026-24048
Backstage is an open framework for building developer portals, and @backstage/backend-defaults provides the default implementations and setup for a standard Backstage backend app. Prior to versions 0.12.2, 0.13.2, 0.14.1, and 0.15.0, the `FetchUrlReader` component, used by the catalog and other plugins to fetch content from URLs, followed HTTP redirects automatically. This allowed an attacker who controls a host listed in `backend.reading.allow` to redirect requests to internal or sensitive URLs
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"backstage","vendor":"backstage","versions":[{"status":"affected","version":"< 0.12.2"},{"status":"affected","version":">= 0.13.0, < 0.13.2"},{"status":"affected","version":">= 0.14.0, < 0.14.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:c251a8005d029a208b920c7f90941b889935f86b9cb8b37178a74434ab511f87 · sha256:6b628d731fe47cc9… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.5,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:c251a8005d029a208b920c7f90941b889935f86b9cb8b37178a74434ab511f87 · sha256:6b628d731fe47cc9… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:c251a8005d029a208b920c7f90941b889935f86b9cb8b37178a74434ab511f87 · sha256:6b628d731fe47cc9… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/backstage/backstage/commit/27f9061d24affd1b9212fe0abd476bfc3fbaedcb","tags":["x_refsource_MISC"],"url":"https://github.com/backstage/backstage/commit/27f9061d24affd1b9212fe0abd476bfc3fbaedcb"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:c251a8005d029a208b920c7f90941b889935f86b9cb8b37178a74434ab511f87 · sha256:6b628d731fe47cc9… · /containers/cna/references/1
{"name":"https://github.com/backstage/backstage/security/advisories/GHSA-q2x5-4xjx-c6p9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/backstage/backstage/security/advisories/GHSA-q2x5-4xjx-c6p9"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:c251a8005d029a208b920c7f90941b889935f86b9cb8b37178a74434ab511f87 · sha256:6b628d731fe47cc9… · /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.