@backstage/plugin-auth-backend (>=0.0.0-nightly-20240122021809 <=0.22.11), @backstage/plugin-auth-backend-module-aws-alb-provider (>=0.0.0-nightly-20240126021148 <=0.4.14-next.1) +7 more potentially affected by CVE-2026-32235 via @backstage/plugin-auth-backend (>=0.0.0-nightly-20240929023448 <=0.27.1-next.2)

@backstage/plugin-auth-backend NPM version =0.0.0-nightly-20240929023448, =0.0.0-nightly-20240122021809, =0.0.0-nightly-20240126021148, =0.0.0-nightly-20240122021809, =0.0.0-nightly-2022122206, =0.0.0-nightly-2022122206, =0.0.0-nightly-2022122206, =1.0.0, =1.2.0 -...

EUVD-2026-11671

@backstage/plugin-auth-backend: OAuth redirect URI allowlist bypass...

Open Redirect

Overview @backstage/plugin-auth-backend is an A Backstage backend plugin that handles authentication Affected versions of this package are vulnerable to Open Redirect via the OAuth redirect URI validation bypass. An attacker can intercept authorization codes by crafting a redirect URI that bypass...

@backstage/plugin-auth-backend (>=0.0.0-nightly-20240122021809 <=0.22.11), @backstage/plugin-auth-backend-module-aws-alb-provider (>=0.0.0-nightly-20240126021148 <=0.4.14-next.1) +7 more potentially affected by CVE-2026-32235 via @backstage/plugin-auth-backend (>=0.0.0-nightly-20240929023448 <=0.27.1-next.2)

@backstage/plugin-auth-backend NPM version =0.0.0-nightly-20240929023448, =0.0.0-nightly-20240122021809, =0.0.0-nightly-20240126021148, =0.0.0-nightly-20240122021809, =0.0.0-nightly-2022122206, =0.0.0-nightly-2022122206, =0.0.0-nightly-2022122206, =1.0.0, =1.2.0 -...

@backstage/plugin-auth-backend: OAuth redirect URI allowlist bypass

Impact The experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafte...

Backstage 代码问题漏洞

Backstage is an open-source application developed by Backstage. It serves as an open platform for building developer portals. Versions of Backstage prior to 0.27.1 contained code-related vulnerabilities. These vulnerabilities stemmed from server-side request forgeing when the experimental client ...

PT-2026-25052

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 0.27.1 Description Backstage is an open framework for building developer portals. A Server-Side Request Forgery SSRF issue exists in the @backstage/plugin-auth-backend component when the...

Backstage 输入验证错误漏洞

Backstage is an open-source application developed by Backstage. It serves as an open platform for building developer portals. Versions of Backstage prior to 0.27.1 contained a vulnerability related to input validation errors. This vulnerability stemmed from an experimental OIDC provisioning...

Backstage 信息泄露漏洞

Backstage is an open-source application developed by Backstage. It serves as an open platform for building developer portals. Versions of Backstage prior to 3.1.5 contained a vulnerability related to information leakage. This vulnerability occurred because verified users with permission to conduc...

PT-2026-25053

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 3.1.5 Description Backstage is an open framework for building developer portals. Authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through th...

CVE-2026-29186

A flaw was found in Backstage. The backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the documentation build process. A gap in this allowlist allows attackers to craft an mkdocs.yml file that causes arbitrary Python code execution...

CVE-2026-29185

Backstage is an open framework for building developer portals. Prior to version 1.20.1, a vulnerability in the SCM URL parsing used by Backstage integrations allowed path traversal sequences in encoded form to be included in file paths. When these URLs were processed by integration functions that...

CVE-2026-29184

Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4...

CVE-2026-29186

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the...

CVE-2026-29186 @backstage/plugin-techdocs-node: TechDocs Mkdocs Configuration Key Enables Arbitrary Code Execution

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the...

CVE-2026-29186

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the...

CVE-2026-29186

Summary: CVE-2026-29186 affects Backstage prior to version 1.14.3, due to a gap in the allowlist used by the @backstage/plugin-techdocs-node when processing MkDocs configuration keys. This gap enables an attacker to craft an mkdocs.yml that leads to arbitrary Python code execution, bypassing Tech...

CVE-2026-29184

Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4...

CVE-2026-29184

Summary: CVE-2026-29184 affects Backstage, specifically the @backstage/plugin-scaffolder-backend. Before version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism, enabling exfiltration of secrets from task event logs. The issue is addressed in version 3.1.4. What is a...

CVE-2026-29184 @backstage/plugin-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass

Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4...