CVE-2026-10775: Sglang Denial of Service Vulnerability

LOW
Advisory Identifier: GHSA-jrcc-j37m-v8fg
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CVSS 3.6
CWE-404
Published
Advisory Summary

CVE-2026-10775 is a LOW (CVSS 3.6) denial of service vulnerability (CWE-404: Improper Resource Shutdown or Release) affecting Sglang libraries in the PyPI ecosystem. The issue involves sglang is vulnerable to dos via the data_hash function. Remediation is available in the latest vendor maintenance releases.

CVE-2026-10775 at a Glance

CVE Identifier CVE-2026-10775
GHSA Identifier GHSA-jrcc-j37m-v8fg
Severity LOW
CVSS v3.1 Base Score 3.6
CWE Classification CWE-404: Improper Resource Shutdown or Release
Affected Product Sglang
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 3.6

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L).

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-10775

To remediate this vulnerability, upgrade all affected Sglang dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

sglang fixed: Latest secure release 
pip install sglang>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show sglang

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-10775, inspect your installed packages using pip:

pip show sglang

Analyze the terminal output to locate any version of Sglang in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show sglang command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-404: Improper Resource Shutdown or Release, where the product does not release or incorrectly releases a resource before it is made available for re-use. In Sglang, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability was determined in sgl-project SGLang up to 0.5.11. Affected by this vulnerability is the function data_hash of the component Cache Handler. This manipulation causes denial of service. The attack is restricted to local execution. A high degree of complexity is needed for the attack. The exploitation appears to be difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.

CVE-2026-10775 Affected Sglang Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
sglang
pypi/sglang
PyPI
≤ 0.5.11

References

NVD — CVE-2026-10775 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10775
Sglang Source Repository REPOSITORY
https://github.com/sgl-project/sglang/issues/25462
Sglang Source Repository REPOSITORY
https://github.com/sgl-project/sglang/pull/22033
Sglang Source Repository REPOSITORY
https://github.com/sgl-project/sglang
vuldb.com/cve/cve-2026-10775 WEB
https://vuldb.com/cve/CVE-2026-10775
vuldb.com/submit/831438 WEB
https://vuldb.com/submit/831438
vuldb.com/vuln/368138 WEB
https://vuldb.com/vuln/368138
vuldb.com/vuln/368138/cti WEB
https://vuldb.com/vuln/368138/cti

Frequently Asked Questions

What is CVE-2026-10775?
CVE-2026-10775 is a security vulnerability in Sglang involving SGLang is Vulnerable to DoS via the data_hash Function under CWE-404: Improper Resource Shutdown or Release.
Which Sglang versions are affected?
Affected versions include releases prior to current release patches across affected packages: sglang.
What version fixes CVE-2026-10775?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is sglang affected?
Yes, sglang is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-10775?
CVE-2026-10775 has a CVSS v3.1 base score of 3.6 (LOW) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L.
What CWE is associated with CVE-2026-10775?
CVE-2026-10775 is classified under CWE-404: Improper Resource Shutdown or Release (The product does not release or incorrectly releases a resource before it is made available for re-use.).
How can I check PyPI dependencies for CVE-2026-10775?
Run the dependency tree command: 'pip show sglang'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jrcc-j37m-v8fg",
  "modified" : "2026-08-17T21:52:48Z",
  "published" : "2026-06-04T00:30:25Z",
  "aliases" : [ "CVE-2026-10775" ],
  "summary" : "SGLang is Vulnerable to DoS via the data_hash Function",
  "details" : "A vulnerability was determined in sgl-project SGLang up to 0.5.11. Affected by this vulnerability is the function data_hash of the component Cache Handler. This manipulation causes denial of service. The attack is restricted to local execution. A high degree of complexity is needed for the attack. The exploitation appears to be difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "sglang"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.5.11"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-10775"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sgl-project/sglang/issues/25462"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sgl-project/sglang/pull/22033"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/sgl-project/sglang"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/cve/CVE-2026-10775"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/831438"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/368138"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/368138/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-404" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-17T21:52:47Z",
    "nvd_published_at" : "2026-06-03T23:16:17Z"
  }
}