All vulnerabilities
CVE-2026-106558GHSA-qmw3-745m-w99g

@backstage/plugin-techdocs-node: Backstage: Improper validation of TechDocs MkDocs configuration

backstage @backstage/plugin-techdocs-nodenpmLibraries & packages
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.47%Chance of exploitation activity in the next 30 days, higher than 39% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in1.15.4Fixed versionGitHub
Published7 Oct 2026Updated 10 Oct 2026CVE List

What fixes it

  • 1.15.4@backstage/plugin-techdocs-node, npmGitHubnpm install @backstage/plugin-techdocs-node@1.15.4

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Impact

An attacker who can provide configuration to a TechDocs build may execute code in the generator runtime. Impact is greatest when documentation generation runs with backend credentials or host access.

Patches

Patched in @backstage/plugin-techdocs-node version 1.15.4.

Workarounds

Use external TechDocs generation in an isolated environment without sensitive credentials or host access. Restrict and review changes to documentation configuration before generation.

Text from GitHub Advisory Database

Affected versions 8

  • @backstage/plugin-techdocs-node, npm< 1.15.4GitHub
  • backstageaffected: < 1.50.7CVE List
  • backstageaffected: >= 1.51.0-next.0, < 1.54.9CVE List
  • backstageaffected: >= 1.55.0-next.0, < 1.55.2CVE List
  • plugin-techdocs-nodeaffected: < 1.14.8CVE List
  • plugin-techdocs-nodeaffected: >= 1.15.0, < 1.15.6CVE List
  • plugin-techdocs-nodeaffected: >= 2.0.0, < 2.0.1CVE List
  • @backstage/plugin-techdocs-node, npmfrom first release, fixed in 1.15.4OSV

References 9