GitHub Advisoryadvisory · npm

GHSA-86rg-pf4c-5grg @backstage/backend-app-api leaks GitLab access tokens

HIGH Published 2024-01-04 Modified 2025-10-01 Official page ↗
Aliases
CVE-2023-6944
Ecosystem
npm
Packages
@backstage/backend-app-api
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Weaknesses
CWE-200, CWE-209
Reviewed
2024-02-05

Affected packages

• npm @backstage/backend-app-api: < 0.5.9-next.1 → fixed in 0.5.9-next.1

Description

A flaw was found in the Red Hat Developer Hub (RHDH). The catalog-import function leaks GitLab access tokens on the frontend when the base64 encoded GitLab token includes a newline at the end of the string. The sanitized error can display on the frontend, including the raw access token. Upon gaining access to this token and depending on permissions, an attacker could push malicious code to repositories, delete resources in Git, revoke or generate new keys, and sign code illegitimately.

Related

Alias · CVE (1)

  • CVE-2023-6944 A flaw was found in the Red Hat Developer Hub (RHDH). vulnerability

Weakness · CWE (2)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-209 Generation of Error Message Containing Sensitive Information weakness

References