CVE-2026-106486

Backstage is an open framework for building developer portals. Prior to 0.3.10 in @backstage/plugin-scaffolder-backend-module-bitbucket-cloud and 0.2.25 in @backstage/plugin-scaffolder-backend-module-bitbucket-server, the Bitbucket pull-request Scaffolder actions did not sufficiently validate filesystem paths. An authenticated user who can execute an eligible template and influence an allowed Bitbucket repository could affect paths outside the expected working area, potentially compromising backend confidentiality, integrity, or availability. This issue is fixed in @backstage/plugin-scaffolder-backend-module-bitbucket-cloud 0.3.10 and @backstage/plugin-scaffolder-backend-module-bitbucket-server 0.2.25.
Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-bitbucket-cloud:*:*:*:*:*:node.js:*:*

Configuration 2 (hide)

cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-bitbucket-server:*:*:*:*:*:node.js:*:*

Configuration 3 (hide)

cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*

History

23 Oct 2026, 15:01

Type Values Removed Values Added
References () https://github.com/backstage/backstage/commit/818528e112c36167d76187e9e63fb518399c4dd2 - () https://github.com/backstage/backstage/commit/818528e112c36167d76187e9e63fb518399c4dd2 - Patch
References () https://github.com/backstage/backstage/releases/tag/v1.54.6 - () https://github.com/backstage/backstage/releases/tag/v1.54.6 - Patch, Release Notes
References () https://github.com/backstage/backstage/security/advisories/GHSA-g8rx-f7m5-7794 - () https://github.com/backstage/backstage/security/advisories/GHSA-g8rx-f7m5-7794 - Mitigation, Vendor Advisory
First Time Linuxfoundation backstage\/plugin-scaffolder-backend-module-bitbucket-server
Linuxfoundation
Linuxfoundation backstage
Linuxfoundation backstage\/plugin-scaffolder-backend-module-bitbucket-cloud
CPE cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-bitbucket-cloud:*:*:*:*:*:node.js:*:*
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-bitbucket-server:*:*:*:*:*:node.js:*:*

06 Oct 2026, 21:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-06 21:17

Updated : 2026-10-23 15:01


NVD link : CVE-2026-106486

Mitre link : CVE-2026-106486

CVE.ORG link : CVE-2026-106486


JSON object : View

Products Affected

linuxfoundation

  • backstage\/plugin-scaffolder-backend-module-bitbucket-cloud
  • backstage\/plugin-scaffolder-backend-module-bitbucket-server
  • backstage
CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-59

Improper Link Resolution Before File Access ('Link Following')