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CVE-2025-49593— Portainer HTTP Headers May Leak to Malicious Container Registries

Quick assessment

Affected
portainer portainer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Portainer是Portainer开源的一款用于管理Docker环境和Docker主机的轻量级用户管理界面。 Portainer Community Edition 2.31.0之前版本和2.27.7之前版本存在信息泄露漏洞，该漏洞源于注册恶意容器注册表可能导致HTTP标头泄露。

CVSS 6.8 · Medium EPSS 0.40% · P32
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I. Basic Information for CVE-2025-49593

Vulnerability Information
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Vulnerability Title
Portainer HTTP Headers May Leak to Malicious Container Registries
Source: CVE Program / CVE List V5
Vulnerability Description
Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. Prior to STS version 2.31.0 and LTS version 2.27.7, if a Portainer administrator can be convinced to register a malicious container registry, or an existing container registry can be taken over, HTTP Headers (including registry authentication credentials or Portainer session tokens) may be leaked to that registry. This issue has been patched in STS version 2.31.0 and LTS version 2.27.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Portainer 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Portainer是Portainer开源的一款用于管理Docker环境和Docker主机的轻量级用户管理界面。 Portainer Community Edition 2.31.0之前版本和2.27.7之前版本存在信息泄露漏洞，该漏洞源于注册恶意容器注册表可能导致HTTP标头泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
portainer portainer < 2.27.7 -

II. Public POCs for CVE-2025-49593

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III. Intelligence Information for CVE-2025-49593

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Patches & Fixes for CVE-2025-49593 (1)

Vendor Advisories for CVE-2025-49593 (1)

IV. Related Vulnerabilities

Same product: portainer
Same vendor: portainer
Same weakness: CWE-200

V. Comments for CVE-2025-49593

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