EUVD-2026-84408
GHSA-xv76-mrpv-26pg
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network-reachable ZeroMQ socket feeding attacker bytes to pickle.loads() yields deterministic RCE with no privileges or interaction, giving full C/I/A impact.
Primary rating from Vendor (certcc).
CVSS VectorVendor: certcc
Lifecycle Timeline
5DescriptionCVE.org
SGLang's multimodal generation runtime is vulnerable to unauthenticated arbitrary code execution because the disaggregated-diffusion orchestrator's DiffusionServer binds an unauthenticated ZeroMQ ROUTER socket to a network interface and passes the final frame of received multipart messages directly to pickle.loads() before any validation occurs.
Articles & Coverage 1
AnalysisAI
Unauthenticated remote code execution in SGLang 0.5.11 through 0.5.14 occurs when the multimodal generation runtime is launched in disaggregated-diffusion mode, where the DiffusionServer orchestrator binds a ZeroMQ ROUTER socket to a network-reachable interface with no authentication and passes the final frame of every received multipart message directly into pickle.loads() before any validation is performed. Rated CVSS 3.1 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), the flaw lets any remote party that can deliver a multipart ZMQ message to that socket execute arbitrary Python code in the serving process, yielding full compromise of confidentiality, integrity and availability on the host. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires the SGLang deployment to be running the multimodal generation runtime in disaggregated-diffusion mode, so that the DiffusionServer orchestrator is active and its unauthenticated ZeroMQ ROUTER socket is bound to a network-reachable interface. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority vulnerability, not an inflated high-CVSS score. … 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 vendor-released patch identified at time of analysis, and no fixed version is specified in the supplied references, so confirm current status against the upstream project at https://github.com/sgl-project/sglang and the advisory links https://hacchoomiso.github.io/blog/SGLang/CVE-2026-93088/ and https://nvd.nist.gov/vuln/detail/CVE-2026-93088 before assuming a fix exists; upgrade to any later tagged release the maintainers publish for this issue. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every SGLang deployment running versions 0.5.11 through 0.5.14 and determine which are launched in disaggregated-diffusion mode with the DiffusionServer ZeroMQ ROUTER socket bound to a non-loopback interface; for each confirmed instance, immediately block inbound traffic to the orchestrator port at the host firewall and network perimeter so only trusted management hosts can reach it, rebind the socket to 127.0.0.1 where feasible, or stop the service until containment is verified. …
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View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
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