A AegiFlow
HIGHCVSS 8.5EPSS 0.3%

CVE-2026-106486

CVE-2026-106486 updated by NVD

Published
2026-10-07
Modified
2026-10-25
EPSS percentile
24%
Sources
github-advisory, nvd

Summary

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 packages

EcosystemPackageAffected versionsFixed versions
npm@backstage/plugin-scaffolder-backend-module-bitbucket-cloud—0.3.10
npm@backstage/plugin-scaffolder-backend-module-bitbucket-server—0.2.25

Remediation: Upgrade to 0.3.10 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.