Vendor
Backstage vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 64 vulnerabilities in Backstage: 0 in the last 7 days and 36 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-115923, was published on 26 October 2026. 2 vulnerabilities in the last four weeks, down 94% on the four before (34). 0 critical against 1. 8 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 36
- Critical, all time
- 1
- Exploited in the wild
- 0
About Backstage
An open platform for building developer portals and internal developer platforms.
Backstage technologies
Latest Backstage vulnerabilities
- CVE-2026-115923: Backstage catalog URL validation bypassmediumCVSS 6.5EPSS 0.3%
- CVE-2026-106495: Backstage backend-defaults improper access control in action invocationmediumCVSS 4.3EPSS 0.2%
- CVE-2026-106510: Backstage TechDocs remote code execution via mkdocs.ymlhighCVSS 7.7
- CVE-2026-106558: Backstage plugin-techdocs-node code execution in MkDocs configurationhighCVSS 8.8
- CVE-2026-106557: Backstage improper input validation in TechDocs Markdown extensionhighCVSS 7.7
- CVE-2026-106563: Backstage improper entity validation in Kubernetes services endpointmediumCVSS 5.3EPSS 0.2%
- CVE-2026-106562: Backstage incorrect authorization in search engine permission filteringmediumCVSS 4.3EPSS 0.2%
- CVE-2026-106561: Backstage Kubernetes plugin sensitive information disclosure in resource queriesmediumCVSS 5EPSS 0.2%
- CVE-2026-106560: Backstage plugin-scaffolder-backend-module-confluence-to-markdown path traversalhighCVSS 7.1EPSS 0.3%
- CVE-2026-106559: Backstage Confluence to Markdown scaffolder input validation bypassmediumCVSS 6.3EPSS 0.3%
- CVE-2026-106508: Backstage TechDocs local publisher path traversalmediumCVSS 5.3EPSS 0.3%
- CVE-2026-106507: Backstage plugin-techdocs-node arbitrary file read in mkdocs snippetsmediumCVSS 5.3
- CVE-2026-106505: Backstage plugin-techdocs-node MkDocs config sanitizer bypasshighCVSS 7.7EPSS 0.3%
- CVE-2026-106504: Backstage scaffolder-backend sensitive information exposure in task logsmediumCVSS 6.5EPSS 0.3%
- CVE-2026-106503: Backstage Scaffolder Backend authorization bypass in action input validationhighCVSS 8.1EPSS 0.4%
- CVE-2026-106502: Backstage plugin-scaffolder-backend credential exposure in task eventsmediumCVSS 5.3EPSS 0.3%
- CVE-2026-106501: Backstage plugin-scaffolder-backend sensitive information exposurecriticalCVSS 9.6EPSS 0.5%
- CVE-2026-106500: Backstage plugin-scaffolder-backend improper task state validationhighCVSS 8.5EPSS 0.3%
- CVE-2026-106498: Backstage catalog entity placeholder URL validation bypasshighCVSS 7.7EPSS 0.3%
- CVE-2026-106497: Backstage plugin-catalog-backend permission evaluation bypassmediumCVSS 4.3
- CVE-2026-106494: Backstage backend-defaults path traversal in cloud storage URL readersmediumCVSS 4.4EPSS 0.3%
- CVE-2026-106492: Backstage backend-defaults service credential delegation bypasshighCVSS 7.6EPSS 0.2%
- CVE-2026-106491: Backstage proxy-backend improper input validationmediumCVSS 6.4EPSS 0.3%
- CVE-2026-106490: Backstage plugin-techdocs-backend path validation in Azure Blob StoragemediumCVSS 6.5EPSS 0.4%
- CVE-2026-106489: Backstage TechDocs authorization bypass in content accessmediumCVSS 6.5EPSS 0.3%
Most severe Backstage vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-106501: Backstage plugin-scaffolder-backend sensitive information exposurecriticalCVSS 9.6EPSS 0.5%
- CVE-2026-88064: Backstage TechDocs YAML injection in mkdocs configurationhighCVSS 8.8EPSS 0.9%
- CVE-2026-106558: Backstage plugin-techdocs-node code execution in MkDocs configurationhighCVSS 8.8
- CVE-2026-106500: Backstage plugin-scaffolder-backend improper task state validationhighCVSS 8.5EPSS 0.3%
- CVE-2026-106486: Backstage Scaffolder Bitbucket path traversal in pull request actionshighCVSS 8.5EPSS 0.3%
- CVE-2026-106459: Backstage Sentry scaffolder improper input validationhighCVSS 8.5EPSS 0.2%
- CVE-2026-106503: Backstage Scaffolder Backend authorization bypass in action input validationhighCVSS 8.1EPSS 0.4%
- CVE-2026-106488: Backstage OIDC provider authentication bypass via unverified emailhighCVSS 8.1EPSS 0.3%
- 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%
Vulnerabilities per week
2 vulnerabilities in the last four weeks, down 94% on the four before (34). 0 critical against 1. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 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 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 33 | 1 | |
| 12 Oct 2026 | 1 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 1 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Backstage vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/backstage)<a href="https://junglewise.ai/threats/vendors/backstage"><img src="https://junglewise.ai/threats/vendors/backstage/badge.svg" alt="Backstage vulnerabilities" /></a>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, and this page as text at https://junglewise.ai/threats/vendors/backstage.md, 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, 12 November 2026.