CVE-2026-106455 Backstage @backstage/plugin-techdocs-node - Server Side Request Forgery

Backstage @backstage/plugin-techdocs-node 0.11.12 to 1.14.7 and 1.15.5 contains a server-side request forgery caused by improper validation of mkdocs plugin configuration in TechDocs, letting authenticated attackers cause documentation builds to retrieve and publish data from network locations, exploit requires authenticated access to TechDocs source repository.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.33% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Server Side Request Forgery
Impact
Server Side Request Forgery, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-918

Vendor fix

Update to versions 1.14.7 or 1.15.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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