CVE-2026-25152 is a path traversal vulnerability affecting the @backstage/plugin-techdocs-node component of Backstage, an open framework for developer portals, specifically when configured with techdocs.generator.runIn: local. This flaw allows authenticated attackers to read arbitrary files from the host filesystem by exploiting symlinks within untrusted documentation sources, embedding file contents into generated HTML. Rated 6.5 Medium (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N), it requires low privileges and network access, leading to high confidentiality impact. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.13.11CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* | ||
>= 1.14.0, < 1.14.1CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.