Skip to main content
MEDIUM

CVE-2026-25152

@backstage/plugin-techdocs-node vulnerable to possible Path Traversal in TechDocs Local Generator

CVSS v3

5.3

MEDIUM

EPSS Score

0.4 %

exploit probability, as of 2026-10-18

CISA KEV

No

known exploited

Exploitation

none

SSVC status

Get an alert for each new CVE published for @backstage/plugin-techdocs-node.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • @backstage/plugin-techdocs-nodenpmall versions · fixed in 1.13.11

Vendor advisories

  • CVE-2026-25152 Red Hat Product Security2 known affected

    @backstage/plugin-techdocs-node: @backstage/plugin-techdocs-node Path Traversal in TechDocs Local Generator

    rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub · ansible-automation-platform/automation-portal as a component of Self-service automation portal 2

Full record on NVD

Description

Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, a path traversal vulnerability in the TechDocs local generator allows attackers to read arbitrary files from the host filesystem when Backstage is configured with `techdocs.generator.runIn: local`. When processing documentation from untrusted sources, symlinks within the docs directory are followed by MkDocs during the build process. File contents are embedded into generated HTML and exposed to users who can view the documentation. This vulnerability is fixed in` @backstage/plugin-techdocs-node` versions 1.13.11 and 1.14.1. Some workarounds are available. Switch to `runIn: docker` in `app-config.yaml` and/or restrict write access to TechDocs source repositories to trusted users only.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Published
2026-01-30
Last Modified
2026-02-19

Frequently asked questions

What is CVE-2026-25152?

Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, a path traversal vulnerability in the TechDocs local generator allows attackers to read arbitrary files from the host filesystem when Backstage is configured with `techdocs.generator.runIn: local`. When processing documentation from untrusted sources, symlinks within the docs directory are followed by MkDocs during the build process. File contents are embedded into generated HTML and exposed to users who can view the documentation. This vulnerability is fixed in` @backstage/plugin-techdocs-node` versions 1.13.11 and 1.14.1. Some workarounds are available. Switch to `runIn: docker` in `app-config.yaml` and/or restrict write access to TechDocs source repositories to trusted users only.

Is CVE-2026-25152 actively exploited?

Active exploitation of CVE-2026-25152 has not been confirmed. Its EPSS score was 0.4% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-25152?

CVE-2026-25152 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Running @backstage/plugin-techdocs-node? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this productCISA KEV additions, October 2026Search CVEs

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database