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Vulnerability details: VCID-y8ht-zmnx-3fdd
Vulnerability ID VCID-y8ht-zmnx-3fdd
Aliases CVE-2026-25152
GHSA-w669-jj7h-88m9
Summary @backstage/plugin-techdocs-node vulnerable to possible Path Traversal in TechDocs Local Generator 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25152.json
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-25152
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-w669-jj7h-88m9
cvssv3.1_qr MODERATE https://github.com/backstage/backstage/security/advisories/GHSA-w669-jj7h-88m9
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25152.json
https://api.first.org/data/v1/epss?cve=CVE-2026-25152
https://github.com/backstage/backstage
https://github.com/backstage/backstage/commit/08f388e3394b133171fe13b62a78caf14407b9c3
2435575 https://bugzilla.redhat.com/show_bug.cgi?id=2435575
CVE-2026-25152 https://nvd.nist.gov/vuln/detail/CVE-2026-25152
GHSA-w669-jj7h-88m9 https://github.com/advisories/GHSA-w669-jj7h-88m9
GHSA-w669-jj7h-88m9 https://github.com/backstage/backstage/security/advisories/GHSA-w669-jj7h-88m9
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25152.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.06843
EPSS Score 0.00023
Published At May 30, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-30T21:06:13.318740+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/@backstage/plugin-techdocs-node/CVE-2026-25152.yml 38.6.0