CVE-2026-106459High· 8.5▾ TwilightBackstage is an open framework for building developer portals. From 0.3.0 until 0.3.8, the @backstage/plugin-scaffolder-backend-module-sentry package is affected by improper input validation in sentry scaffolder actions. An authenticated…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 46.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 7.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
Last analysed / modified upstream
Backstage is an open framework for building developer portals. From 0.3.0 until 0.3.8, the @backstage/plugin-scaffolder-backend-module-sentry package is affected by improper input validation in sentry scaffolder actions. An authenticated internal user who can execute the affected actions may cause the backend to contact unintended destinations and disclose Sentry integration credentials. Subsequent impact depends on network reachability and the privileges granted to the configured token. This issue is fixed in version 0.3.8.
backstage/plugin-scaffolder-backend-module-sentry >= 0.3.0, < 0.3.8backstage >= 1.47.0, < 1.54.8Upgrade past the affected range:
backstage/plugin-scaffolder-backend-module-sentry 0.3.8backstage 1.54.8Affected packages:
@backstage/plugin-scaffolder-backend-module-sentry >= 0.3.0, < 0.3.8Patched in:
@backstage/plugin-scaffolder-backend-module-sentry 0.3.8Connected by shared product, vendor, weakness, or advisory.
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