GHSA-QGVJ-QCF8-XQ73 Backstage: Improper URL validation in catalog entity placeholder resolution

Impact An authenticated Backstage user could craft a catalog entity with placeholder directives that reference resources outside the entity's source repository. Under certain configurations, this could allow access to data not intended to be available to the user. Patches Patched in...

Backstage: Improper URL validation in catalog entity placeholder resolution

Impact An authenticated Backstage user could craft a catalog entity with placeholder directives that reference resources outside the entity's source repository. Under certain configurations, this could allow access to data not intended to be available to the user. Patches Patched in...

EUVD-2026-94056

Backstage: Improper URL validation in catalog entity placeholder resolution...

Server-side Request Forgery (SSRF)

Overview @backstage/plugin-catalog-backend is a The Backstage backend plugin that provides the Backstage catalog Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the relativeUrl function in PlaceholderProcessor.ts, where a catalog entity placeholder value...

CVE-2026-106498

A flaw was found in @backstage/plugin-catalog-backend. An authenticated remote user can craft a catalog entity containing placeholder directives that reference resources outside the entity's source repository due to improper URL validation. Under certain configurations, this can lead to informati...

CVE-2026-106498

Backstage is an open framework for building developer portals. Prior to 3.5.1, 3.6.2, 3.7.2, 3.8.2 and 3.9.1, the @backstage/plugin-catalog-backend package is affected by improper url validation in catalog entity placeholder resolution. An authenticated Backstage user could craft a catalog entity...

CVE-2026-106498

The Backstage framework (prior to versions 3.5.1, 3.6.2, 3.7.2, 3.8.2, and 3.9.1) is vulnerable in the @backstage/plugin-catalog-backend package due to improper url validation during catalog entity placeholder resolution. An authenticated user can craft a catalog entity with placeholder directive...

CVE-2026-106497

Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary...

PT-2026-107295

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 3.5.1 Backstage versions prior to 3.6.2 Backstage versions prior to 3.7.2 Backstage versions prior to 3.8.2 Backstage versions prior to 3.9.1 Description The @backstage/plugin-catalog-backend package contains improp...

CVE-2026-55425: Exposure of Sensitive Information Due to Incompatible Policies

Graylog is a free and open log management platform. From 7.1.0 until 7.1.4 and 7.2.0-alpha.2, the System Catalog entity titles endpoint in graylog2-server/src/main/java/org/graylog2/rest/resources/system/contentpacks/titles/EntityTitleServiceImpl.java allows an authenticated user to request...