Arbitrary File Read Vulnerability in Backstage TechDocs Plugin by Clairvoyance
CVE-2026-106507

5.3MEDIUM

Key Information:

Vendor

Backstage

Status
Backstage
Plugin-techdocs-node
Vendor
CVE Published:
6 October 2026

What is CVE-2026-106507?

The Backstage TechDocs plugin, prior to version 1.15.4, is vulnerable to an arbitrary file read issue. This vulnerability arises from unsafe path resolution in the handling of documentation sources. An authenticated user able to register documentation sources can potentially access files outside designated documentation boundaries, which may expose sensitive files that are readable during the build process. Users are advised to update to the latest version to mitigate this risk.

Affected Version(s)

backstage < 1.54.6

plugin-techdocs-node < 1.15.4

References

https://github.com/backstage/backstage/security/advisorie...
x_refsource_CONFIRM
https://github.com/backstage/backstage/commit/911ca36f10e...
x_refsource_MISC
https://github.com/backstage/backstage/releases/tag/v1.54.6
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.