LOW CVSS 3.6
Published: 2026-06-03

CVE-2026-10775

lmsys sglang Security Advisory (CVE-2026-10775)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-10775 impacting lmsys sglang. Evaluated with CVSS Base Score of 3.6 (LOW).

Original NVD Description

Source: NIST NVD
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.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
Low (I:L)
Partial data modification possible
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product lmsys / sglang
Affected Versions *
Weakness Enumeration CWE-404

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2026-10775 impacting lmsys sglang.

⚡ Nuclei Detection Template (YAML) cve-2026-10775.yaml
id: cve-2026-10775

info:
  name: lmsys sglang - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: low
  description: |
    Automated signature & scanner for CVE-2026-10775 affecting lmsys sglang.
    Evaluation: 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 Han...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-10775
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
    cvss-score: 3.6
    cve-id: CVE-2026-10775
    cwe-id: CWE-404
  tags: cve,cve-2026-10775,lmsys,sglang,low

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "sglang"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-10775.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-10775
# Target: lmsys sglang | CVSS: 3.6 (LOW)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-10775 (lmsys sglang)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against lmsys sglang scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2026-10775.sh
# Recommended Remediation & Patching Commands for CVE-2026-10775
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install sglang 2>/dev/null || \
sudo dnf upgrade sglang 2>/dev/null || \
sudo yum update sglang

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i sglang 2>/dev/null || rpm -qa | grep -i sglang

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-10775 in lmsys sglang?

Review vendor-specific security notices and update lmsys sglang packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2026-10775?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2026-10775?

CVE-2026-10775 is classified with a CVSS 3.1 Base Score of 3.6 (LOW). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
3.6
LOW SEVERITY
CVE ID CVE-2026-10775
Weakness CWE-404
Vendor lmsys
Product sglang
Published 2026-06-03
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L