CVEvulnerability

CVE-2026-106486

9.9 CRITICAL Published 2026-10-06 Modified 2026-10-23 Official page ↗
Status
Analyzed
Published
2026-10-06
Last modified
2026-10-23
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected])
9.9 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-22, CWE-59

Description

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.

Affected configurations

• linuxfoundation backstage\/plugin-scaffolder-backend-module-bitbucket-cloud (< 0.3.10) • linuxfoundation backstage\/plugin-scaffolder-backend-module-bitbucket-server (< 0.2.25) • linuxfoundation backstage (< 1.54.6)

Related

Weakness · CWE (2)

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
  • CWE-59 Improper Link Resolution Before File Access weakness

References