CVE-2026-106510
NVD: Backstage is an open framework for building developer portals. NVD: 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. NVD: 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.
7.7 Severity
HIGH EPSS
0.0045 (38) KEV
-
Source-published summary
NVD: Backstage is an open framework for building developer portals. NVD: 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. NVD: 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.
Possible impact
Source describes code execution review · command execution risk · authenticated boundary. Possible impact: An attacker may be able to run code or commands on affected systems.
Affected context
vendor/product: linuxfoundation / backstage_plugin-techdocs-node; affected version context: 1.51.0
Remediation / advisory
Patch confirmed by source text; fixed version context: versions.
Why it matters
Source describes code execution review · command execution risk · authenticated boundary. Possible impact: An attacker may be able to run code or commands on affected systems.; CVSS 7.7 (HIGH); EPSS percentile 38; not listed in KEV; Patch confirmed by source text; fixed version context: versions; sources: NVD, OSV, Vendor Advisory.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
authenticated boundary
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV / Vendor Advisory description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.
Official references
- https://nvd.nist.gov/vuln/detail/CVE-2026-106510
- https://osv.dev/vulnerability/CVE-2026-106510
- https://github.com/backstage/backstage/commit/02cd7cdbb18b687446277b5602adaee7f1d53cbb
- https://github.com/backstage/backstage/commit/a900a9953c8f7ad3ba1906d1d257725a9996cc9d
- https://github.com/backstage/backstage/releases/tag/v1.50.5
- https://github.com/backstage/backstage/releases/tag/v1.54.6
- https://github.com/backstage/backstage/security/advisories/GHSA-4488-j8vj-vqqv