Backstage has iImproper filesystem validation in Bitbucket pull-request scaffolder actions
Exact source revision recorded 24 Oct 2026 13:17:17 UTC. It does not establish the source's current position. Latest evidence.
osv · GHSA-g8rx-f7m5-7794
Published### Impact An authenticated user who can execute an eligible template and influence an allowed Bitbucket repository could affect filesystem paths outside the expected working area. Depending on the backend deployment, this could compromise backend confidentiality, integrity, or availability. ### Patches - `@backstage/plugin-scaffolder-backend-module-bitbucket-cloud` version `0.3.10` - `@backstage/plugin-scaffolder-backend-module-bitbucket-server` version `0.2.25` ### Workarounds - Restrict execution of affected Scaffolder templates to trusted users. - Avoid templates that accept user-controlled target repositories for these actions.
- Source published
- 7 Oct 2026 18:01:26 UTC
- Source modified
- 7 Oct 2026 18:15:12 UTC
- Observed here
- 24 Oct 2026 13:17:17 UTC
- Source terms
- GitHub Advisory Database · CC-BY-4.0
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Publisher rating · HIGH