EUVD-2026-72104
GHSA-7g8f-4jrf-x782
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Default no-auth management API enables network exploitation; AC:H reflects both the dynamic-build prerequisite and Go plugin ABI matching requirement for RCE.
Primary rating from Vendor (JFROG).
CVSS VectorVendor: JFROG
Lifecycle Timeline
4DescriptionCVE.org
Bifrost HTTP transport before 2.0.0 accepts an enabled custom plugin whose path is an HTTP URL through unauthenticated POST /api/plugins when management authentication is disabled (the default, governance.auth_config.is_enabled=false). The shared-object loader treats an http-prefixed path as a download URL, writes the body to a temporary .so, and passes it to Go's plugin.Open. After a successful open, optional Init runs immediately with the supplied config as the Bifrost process user. On documented dynamically linked builds (DYNAMIC=1 / no static-link flags), which the vendor requires for custom Go plugins, plugin.Open is expected to succeed and this is unauthenticated remote code execution. On the published statically linked Docker image, plugin.Open fails with Dynamic loading not supported, so that build class is only server-side request forgery. Attack complexity is High because the attacker cannot force RCE on the default static image and a loadable plugin must match the host Go version, OS, architecture, and linkage. The 1.6.x HTTP transport line through 1.6.11 does not contain the fix.
AnalysisAI
Bifrost HTTP transport before version 2.0.0 exposes an unauthenticated plugin installation endpoint (POST /api/plugins) that accepts HTTP URLs as plugin paths, enabling SSRF on all build types and unauthenticated remote code execution on dynamically linked builds. Because management authentication is disabled by default (governance.auth_config.is_enabled=false), no credentials are required to trigger the flaw; the shared-object loader fetches the attacker-supplied URL, writes it as a temporary .so, and on DYNAMIC=1 builds calls plugin.Open() which immediately executes the plugin's Init() function as the Bifrost process user. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | For SSRF on all builds: Management authentication must be disabled, which is the default state (governance.auth_config.is_enabled=false); no other special configuration is required and the management API must be network-reachable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.1 score (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) reflects a two-tier threat model: the default statically linked Docker image is limited to SSRF, while dynamically linked operator deployments face full unauthenticated RCE with C:H/I:H/A:H impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Bifrost transports/v2.0.0, released at https://github.com/maximhq/bifrost/releases/tag/transports/v2.0.0, which patches the plugin download path by routing it through SSRFSafeDialContextWithAllowlist (PR #5763, commit e0057ff355f831c251eabe9d0e44f3a3748532c6). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all systems running Bifrost and prioritize dynamically linked build configurations; review access logs for unusual POST requests to /api/plugins endpoints with HTTP URLs, and immediately patch all systems to transports/v2.0.0 or later. …
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External POC / Exploit Code
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