EUVD-2026-64603
GHSA-gxmj-gjp2-h2mv
Severity by source
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Adjacent vector because proxy requires same-network access; PR:N since the proxy gate is the only control and it fails; scope change (S:C) because impact reaches Docker daemon beyond the proxy; high confidentiality, no integrity or availability impact.
Primary rating from Vendor (vulncheck).
CVSS VectorVendor: vulncheck
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
docker-socket-proxy fails to properly gate read endpoints in the /containers Docker API namespace when the CONTAINERS environment variable is set. Attackers can use GET requests to /containers/{id}/archive, /containers/{id}/export, /containers/{id}/logs, and /containers/{id}/top to read arbitrary files and download entire container filesystems as tar archives.
AnalysisAI
Insufficient access control granularity in docker-socket-proxy allows adjacent-network attackers without credentials to read arbitrary files and exfiltrate entire container filesystems via four unguarded Docker API endpoints. When the CONTAINERS environment variable is set, the HAProxy-based proxy fails to block /containers/{id}/archive, /containers/{id}/export, /containers/{id}/logs, and /containers/{id}/top, treating namespace-level permission as blanket endpoint permission. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the CONTAINERS environment variable is set to a truthy value in the docker-socket-proxy deployment - this specific configuration flag is the prerequisite that triggers the overly broad access grant. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.3 with AV:A correctly reflects that exploitation requires adjacent network access to the proxy - typically the same Docker bridge network, subnet, or host - which meaningfully constrains the attack surface relative to an internet-exposed service. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with access to the Docker network where docker-socket-proxy is listening issues a GET request to /containers/{id}/export using a standard HTTP client such as curl. Because CONTAINERS=1 grants namespace-level access, the proxy forwards the request to the Docker daemon unimpeded and returns the container's full filesystem as a tar archive, exposing application secrets, environment variables, private keys, and configuration files. … |
| Remediation | The upstream fix is available in PR #183 at https://github.com/Tecnativa/docker-socket-proxy/pull/183; no independently confirmed tagged release incorporating this fix has been identified at time of analysis, making this an upstream fix available via PR/commit only. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all docker-socket-proxy deployments with CONTAINERS environment variable enabled and assess their network exposure to adjacent networks; immediately apply firewall rules to restrict access to trusted networks only. …
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