Backstage is an open framework for building developer portals. From 0.11.12 until 1.14.7 and 1.15.5, the @backstage/plugin-techdocs-node package is affected by improper validation of mkdocs plugin configuration in techdocs. An authenticated attacker with control over a TechDocs source repository could cause a documentation build to retrieve and publish data from network locations reachable by the build environment.
Exposure depends on deployment topology, build mode, and target endpoint protections. Modern cloud metadata services that require tokens or special headers are not directly accessible through the affected behavior. This issue is fixed in @backstage/plugin-techdocs-node versions 1.14.7 and 1.15.5.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 9
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Linuxfoundation Backstage_Plugin-Techdocs-Node
cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*
|
0.11.12
|
1.14.7
|
|
Linuxfoundation Backstage_Plugin-Techdocs-Node
cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*
|
1.15.0
|
1.15.5
|
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
|
0.71.1
|
1.50.6
|
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
|
1.51.1
|
1.54.8
|
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:-:*:*:*:*:*:*
|
— | — |
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:next0:*:*:*:*:*:*
|
— | — |
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:next1:*:*:*:*:*:*
|
— | — |
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:next2:*:*:*:*:*:*
|
— | — |
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:next3:*:*:*:*:*:*
|
— | — |
References 6
https://github.com/backstage/backstage/commit/28aa82ae2815988721dd7bbf43cd69c43…
security-advisories@github.com
https://github.com/backstage/backstage/commit/9f76ea445088961f68c364764cc4b7734…
security-advisories@github.com
https://github.com/backstage/backstage/releases/tag/v1.50.6
security-advisories@github.com
https://github.com/backstage/backstage/releases/tag/v1.54.8
security-advisories@github.com
https://github.com/backstage/backstage/releases/tag/v1.55.0
security-advisories@github.com
https://github.com/backstage/backstage/security/advisories/GHSA-q38j-6vcm-2f5m
security-advisories@github.com