EUVD-2026-92264
GHSA-fr3j-h92j-cm4p
Severity by source
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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
Unauthenticated GET to /server_info returns the service's api_key, so AV:N/AC:L/PR:N and C:H (master credential disclosed); no integrity or availability impact.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
4DescriptionCVE.org
A vulnerability has been found in sgl-project sglang up to 0.5.21. This issue affects the function server_info of the file python/sglang/srt/entrypoints/http_server.py of the component HTTP Endpoint. Such manipulation of the argument api_key leads to cleartext transmission of sensitive information. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit has been disclosed to the public and may be used. The pull request to fix this issue awaits acceptance.
AnalysisAI
Unauthenticated remote credential disclosure in SGLang (sgl-project/sglang) up to version 0.5.21, where the /server_info HTTP endpoint and the gRPC GetServerInfo path returned the entire ServerArgs dataclass and thereby exposed the configured api_key, admin_api_key, and ssl_keyfile_password values verbatim to any network-reachable caller. No privileges or user interaction are required (CVSS 4.0 vector PR:N/UI:N, with E:P indicating a proof-of-concept), and publicly available exploit code exists; KEV has not flagged this as actively exploited. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the sglang operator has actually configured at least one secret ServerArgs field (api_key, admin_api_key, or ssl_keyfile_password) - an instance with none set has nothing to leak. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a credential-disclosure flaw (CWE-319) in sglang's /server_info HTTP endpoint, which spread dataclasses.asdict(server_args) into its JSON response and thereby returned api_key, admin_api_key, and ssl_keyfile_password verbatim. … 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 | No released patched version was confirmed at time of analysis - the fix exists only as upstream pull request https://github.com/sgl-project/sglang/pull/30343 (upstream fix available as PR/commit; released patched version not independently confirmed), which replaces dataclasses.asdict(server_args) with a redacting redacted_asdict() helper in http_server.py, engine.py, and grpc_bridge.py. … Detailed patch versions, workarounds, and compensating controls in full report. |
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