CVE-2026-106455
highBackstage is an open framework for building developer portals.
Vendor / product: Linuxfoundation — backstage plugin-techdocs-node
Backstage is an open framework for building developer portals. From 0.11.12 until 1.14.7 and 1.15.5, the @backstage/plugin-techdocs-node package is affected by improper validation of mkdocs plugin configuration in techdocs. An authenticated attacker with control over a TechDocs source repository could cause a documentation build to retrieve and publish data from network locations reachable by the build environment. Exposure depends on deployment topology, build mode, and target endpoint protections. Modern cloud metadata services that require tokens or special headers are not directly accessible through the affected behavior. This issue is fixed in @backstage/plugin-techdocs-node versions 1.14.7 and 1.15.5.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/backstage/backstage/commit/28aa82ae2815988721dd7bbf43cd69c431dcd71b security-advisories@github.com
- https://github.com/backstage/backstage/commit/9f76ea445088961f68c364764cc4b7734f368fc0 security-advisories@github.com
- https://github.com/backstage/backstage/releases/tag/v1.50.6 security-advisories@github.com
- https://github.com/backstage/backstage/releases/tag/v1.54.8 security-advisories@github.com
- https://github.com/backstage/backstage/releases/tag/v1.55.0 security-advisories@github.com
- https://github.com/backstage/backstage/security/advisories/GHSA-q38j-6vcm-2f5m security-advisories@github.com