Portainer HTTP Headers May Leak to Malicious Container Registries
Published Jun 17, 2025
6.8
MEDIUMCVSS 3.1
EPSS 0.40%
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.
Affected products
-
- Version < 2.27.7StatusaffectedConstraints-
- Version < 2.31.0StatusaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Jun 18, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2025-2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 0.40% (0.00400) | 31.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.35% (0.00347) | 26.29th | v5 (v2026.06.15) |
| Jun 18, 2025 | 0.06% (0.00056) | 17.75th | v4 (v2025.03.14) |
References (3)
- https://github.com/portainer/portainer/commit/384cb53c64af78af8e1ac7ef5b0f91bad530e989 x_refsource_MISC
- https://github.com/portainer/portainer/commit/b767dcb27ed253b423facd2e04ef971985950fd3 x_refsource_MISC
- https://github.com/portainer/portainer/security/advisories/GHSA-h5jw-8c32-xfv6 x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| https://github.com/portainer/portainer/commit/384cb53c64af78af8e1ac7ef5b0f91bad530e989 | x_refsource_MISC | |
| https://github.com/portainer/portainer/commit/b767dcb27ed253b423facd2e04ef971985950fd3 | x_refsource_MISC | |
| https://github.com/portainer/portainer/security/advisories/GHSA-h5jw-8c32-xfv6 | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.