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Remote Code Execution Vulnerability in Backstage TechDocs

Remote Code Execution Vulnerability in Backstage TechDocs

First seen 8 Oct 2026, 06:31 UTC • •
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ThreatCluster AI
ThreatCluster •October 8, 2026 at 07:31 UTC
  • •CVE-2026-106510 allows remote code execution via crafted mkdocs.yml files.
  • •Affected versions include Backstage TechDocs prior to 1.14.6; patches are available.
  • •Immediate upgrade or compensating controls are recommended to mitigate risks.

A remote code execution vulnerability (CVE-2026-106510) has been identified in the Backstage TechDocs framework, affecting versions prior to 1.14.6. Authenticated users with permission to register catalog entities can exploit this flaw by providing a crafted mkdocs.yml file, leading to arbitrary OS command execution on the TechDocs build host during documentation builds. The vulnerability was published on October 7, 2026, with a CVSS score of 7.7, categorizing it as high severity. The issue has been patched in versions 1.14.6 and 1.15.4. Users are advised to upgrade immediately or implement compensating controls such as isolating TechDocs builds in a container and auditing existing catalog entities for suspicious markdown extensions. The vulnerability primarily impacts organizations using Backstage for developer portals.

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Timeline

2026-10-07
CVE-2026-106510 published
A remote code execution vulnerability in Backstage TechDocs was disclosed, affecting versions prior to 1.14.6.
Secalerts.Co

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Extracted Entities (9)

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Common questions

Who can exploit this vulnerability?
An authenticated user with permission to register catalog entities can exploit this vulnerability.
What versions are affected?
Versions of the @backstage/plugin-techdocs-node prior to 1.14.6 are affected.
What should I do if I cannot upgrade immediately?
If immediate upgrades are not possible, isolate TechDocs builds in a container and audit existing catalog entities for suspicious values.