Potential HTTP Header Leakage in Portainer Community Edition by Portainer
CVE-2025-49593
What is CVE-2025-49593?
Portainer Community Edition, a lightweight platform for managing containerized applications such as Docker and Kubernetes, has a vulnerability that may allow potential exposure of sensitive HTTP headers. If an administrator of Portainer registers a malicious container registry or if an existing registry is compromised, critical information such as authentication credentials and session tokens may be inadvertently shared. This issue has been addressed in the STS version 2.31.0 and LTS version 2.27.7 releases, emphasizing the need for users to update their software to the latest version to mitigate the risk.

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Affected Version(s)
portainer < 2.27.7 < 2.27.7
portainer < 2.31.0 < 2.31.0
References
CVSS V3.1
Timeline
Vulnerability published
Vulnerability Reserved
