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    CVE-2026-86793

    SGLang allows unauthenticated pickle deserialization through /update_weights_from_tensor when no auth keys are configured, and the SafeUnpickler policy can be bypassed because builtins.import and builtins.getattr are resolvable, enabling code execution via pickle REDUCE.

    Published:Sep 11, 2026
    Last Modified:Sep 11, 2026
    EPS:Sep 11, 2026
    EPSS Score:
    CVSS Score:

    Affected Products

    Vendor
    Sglang
    Product
    Sglang

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-15977 (CVSS 7.5) — SGLang contains a credential leakage vulnerability in the /server_info endpoint, which will return API keys an…
    CVE-2026-15976 (CVSS 9.8) — SGLang contains a RCE vulnerability when attempting to load model weights from a HuggingFace repository, speci…
    CVE-2026-15974 (CVSS 6.5) — SGLang contains an SSRF and local file read in the multimodal generation endpoint /v1/chat/completions due to …
    CVE-2026-15971 (CVSS 9.8) — SGLang contains an RCE vulnerability when the optional dumper subsystem is enabled, allowing for a sandbox esc…
    CVE-2026-14890 (CVSS 9.1) — SGLang uses an expert-parallel backup subsystem that exposes a ZeroMQ PULL socket on a routable network interf…
    CVE-2026-10300 (CVSS 2.9) — A security vulnerability has been detected in SGLang 0.5.10.post1. Impacted is an unknown function of the file…
    CVE-2026-7304 (CVSS 9.8) — SGLangs multimodal generation runtime is vulnerable to unauthenticated remote code execution when the --enable…
    CVE-2026-7302 (CVSS 9.1) — SGLangs multimodal generation runtime is vulnerable to an unauthenticated path traversal vulnerability, allowi…

    Common Vulnerability Scoring System

    Attack Vector
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    Adjacent
    Local
    Physical
    Privileges Required
    None
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    High
    User Interaction
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    Changed
    Confidentiality
    None
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    Integrity
    None
    Low
    High
    Availability
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