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    CVE-2026-112270

    SGLang through 0.5.22 with the Mooncake disaggregation backend contains an uncontrolled memory allocation vulnerability in handle_staging_rsp() that lets unauthenticated network-adjacent attackers exhaust Prefill memory. Attackers can obtain the rank address from the /route endpoint and send STAGING_RSP messages with huge chunk_idx values under fresh room IDs, causing the scheduler to be OOM-killed.

    Published:Oct 19, 2026
    Last Modified:Oct 19, 2026
    EPS:Oct 19, 2026
    EPSS Score:
    CVSS Score:6.5

    Affected Products

    Vendor
    Sgl-project
    Product
    Sglang

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-112267 (CVSS 6.9) — SGLang through 0.5.22 in prefill/decode disaggregation mode contains a server-side request forgery vulnerabili…
    CVE-2026-112266 (CVSS 8.2) — SGLang through 0.5.22 contains a denial of service vulnerability that allows API clients to abort other users'…
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    CVE-2026-112082 (CVSS 7.7) — A vulnerability was identified in sgl-project SGLang up to 0.5.19. This impacts the function Scheduler.expert_…
    CVE-2026-111392 (CVSS 6.3) — SGLang through 0.5.21 trusts caller-supplied mm_hashes values as the multimodal prefix-cache key, allowing rem…
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    CVE-2026-110809 (CVSS 2.1) — A security vulnerability has been detected in sgl-project SGLang up to 0.5.19. Affected by this issue is the f…
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    Common Vulnerability Scoring System

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