CVE-2026-106510
Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by remote code execution via crafted markdown_extensions in techdocs mkdocs.yml.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by remote code execution via crafted markdown_extensions in techdocs mkdocs.yml. An authenticated user who can register catalog entities can provide a crafted mkdocs.yml causing arbitrary OS command execution on the TechDocs build host when the docs are built. This issue is fixed in versions 1.14.6 and 1.15.4.
- CVSS 3.1
- 7.7 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
- EPSS
- 0.48% probability · 41th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-183, CWE-470
- Affected
- linuxfoundation/backstage plugin-techdocs-node · linuxfoundation/backstage
- Source
- security-advisories@github.com
EPSS moved from 0.4% on 8 October 2026 to 0.5% on 26 October 2026.
References
- https://github.com/backstage/backstage/commit/02cd7cdbb18b687446277b5602adaee7f1d53cbbPatch
- https://github.com/backstage/backstage/commit/a900a9953c8f7ad3ba1906d1d257725a9996cc9dPatch
- https://github.com/backstage/backstage/releases/tag/v1.50.5Patch, Release Notes
- https://github.com/backstage/backstage/releases/tag/v1.54.6Patch, Release Notes
- https://github.com/backstage/backstage/security/advisories/GHSA-4488-j8vj-vqqvMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.