Vendor
Backstage vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 29 vulnerabilities in Backstage: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-88064, was published on 16 September 2026. 4 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 0
- Exploited in the wild
- 0
About Backstage
An open platform for building developer portals and internal developer platforms.
Backstage technologies
Latest Backstage vulnerabilities
- CVE-2026-88064: Backstage TechDocs YAML injection in mkdocs configurationhighCVSS 8.8EPSS 0.9%
- CVE-2026-73563: Backstage plugin-auth-backend OAuth redirect_uri allowlist bypasslowCVSS 3.1EPSS 0.3%
- Backstage @backstage/plugin-auth-backend OAuth allowlist bypassmediumCVSS 4.7
- CVE-2026-44374: Backstage incorrect authorization in catalog unprocessed entities modulemediumCVSS 4.3EPSS 0.3%
- CVE-2026-32237: Backstage Scaffolder Backend secret exposure in dry-run endpointlowCVSS 3.1EPSS 0.4%
- CVE-2026-32236: Backstage auth-backend SSRF in CIMD metadata fetchmediumCVSS 4EPSS 0.5%
- CVE-2026-32235: Backstage Auth Backend OAuth redirect URI allowlist bypasslowCVSS 3.1EPSS 0.2%
- CVE-2026-29186: Backstage TechDocs arbitrary code execution via MkDocs configuration bypasshighCVSS 7.7EPSS 0.9%
- CVE-2026-29184: Backstage plugin-scaffolder-backend log redaction bypasslowCVSS 3.1EPSS 0.3%
- CVE-2026-25153: Backstage TechDocs code execution via MkDocs hooks configurationhighCVSS 7.7EPSS 0.6%
- CVE-2026-24046: Backstage Scaffolder symlink path traversal in multiple actionshighCVSS 7.1EPSS 0.5%
- CVE-2026-24048: Backstage SSRF in FetchUrlReader via HTTP redirectslowCVSS 3.1EPSS 0.2%
- CVE-2026-24047: Backstage cli-common symlink chain bypass in resolveSafeChildPathlowCVSS 3.1EPSS 0.5%
- CVE-2025-55285: Backstage Scaffolder secret leakage in logs via fetch:templatelowCVSS 3.1
- CVE-2025-32791: Backstage permission backend information disclosure in policy decisionslowCVSS 3.1EPSS 0.3%
- CVE-2024-47762: Backstage plugin-app-backend environment variable visibility bypasslowCVSS 3.1EPSS 0.4%
- CVE-2024-46976: Backstage TechDocs plugin XSS circumvention via storage bucket injectionlowCVSS 3.1EPSS 0.3%
- CVE-2024-45816: Backstage TechDocs directory traversal in storage bucketlowCVSS 3.1
- CVE-2024-45815: Backstage plugin-catalog-backend prototype pollutionlowCVSS 3.1
- CVE-2024-26150: Backstage @backstage/backend-common path traversal via symlinkslowCVSS 3.1
- CVE-2023-6944: Backstage backend-app-api GitLab token leak in error logslowCVSS 3.1EPSS 0.6%
- CVE-2023-35926: Backstage Scaffolder plugin insecure sandbox in code executionlowCVSS 3.1EPSS 1.9%
- CVE-2021-43776: Backstage plugin-auth-backend reflected cross-site scriptinglowCVSS 3.1EPSS 0.7%
- Backstage Scaffolder Backend remote code execution in v1beta3 templatesinfo
- CVE-2021-43783: Backstage plugin-scaffolder-backend path traversal in fetch:templatelowCVSS 3.1EPSS 1.3%
Most severe Backstage vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-88064: Backstage TechDocs YAML injection in mkdocs configurationhighCVSS 8.8EPSS 0.9%
- CVE-2026-29186: Backstage TechDocs arbitrary code execution via MkDocs configuration bypasshighCVSS 7.7EPSS 0.9%
- CVE-2026-25153: Backstage TechDocs code execution via MkDocs hooks configurationhighCVSS 7.7EPSS 0.6%
- CVE-2026-24046: Backstage Scaffolder symlink path traversal in multiple actionshighCVSS 7.1EPSS 0.5%
- Backstage @backstage/plugin-auth-backend OAuth allowlist bypassmediumCVSS 4.7
- CVE-2026-44374: Backstage incorrect authorization in catalog unprocessed entities modulemediumCVSS 4.3EPSS 0.3%
- CVE-2026-32236: Backstage auth-backend SSRF in CIMD metadata fetchmediumCVSS 4EPSS 0.5%
- CVE-2023-35926: Backstage Scaffolder plugin insecure sandbox in code executionlowCVSS 3.1EPSS 1.9%
- CVE-2021-41151: Backstage plugin-scaffolder-backend path traversallowCVSS 3.1EPSS 1.3%
- CVE-2021-32662: Backstage TechDocs path traversal in mkdocs.ymllowCVSS 3.1EPSS 1.3%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 2 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 1 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/backstage.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Backstage vulnerabilities", https://junglewise.ai/threats/vendors/backstage, 26 September 2026.