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Backstage CVE-2023-6944

MEDIUM
Error Message Information Leak (CWE-209)
2024-01-04 secalert@redhat.com
5.7
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.7 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 19:33 vuln.today
CVE Published
Jan 04, 2024 - 10:15 nvd
MEDIUM 5.7

DescriptionCVE.org

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.

AnalysisAI

A flaw was found in the Red Hat Developer Hub (RHDH). Rated medium severity (CVSS 5.7), this vulnerability is remotely exploitable, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-209. 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. Affected products include: Redhat Red Hat Developer Hub, Linuxfoundation Backstage.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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### Impact

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CVE-2023-6944 vulnerability details – vuln.today

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