CVE-2026-25153
CVE-2026-25153 is a critical arbitrary Python code execution vulnerability affecting Backstage's @backstage/plugin-techdocs-node when configured with 'runIn: local'. A malicious actor with the ability to modify a repository's mkdocs.yml file can leverage MkDocs hooks to execute code on the TechDocs build server. With a CVSS score of 8.8 (High), this vulnerability has a network attack vector, low attack complexity, and can lead to high impact on confidentiality, integrity, and availability. While there is no known active exploitation, public exploit code, or significant community discussion, patches are available in versions 1.13.11 and 1.14.1, and workarounds like using 'runIn: docker' or restricting mkdocs.yml modifications are recommended.
Impacted Technologies
| 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 Data
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
Exploit Intelligence
Social Chatter
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
Media Mentions
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.