CVE-2026-109227

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Source
https://cve.org/CVERecord?id=CVE-2026-109227
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109227.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-109227
Published
2026-10-12T14:04:31Z
Modified
2026-10-14T02:47:33Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
SGLang through 0.5.21 Memory Exhaustion DoS via Qwen-VL Video Preprocessing
Details

SGLang through 0.5.21 contains an unbounded memory allocation vulnerability in preprocess_video in qwen_vl.py that decodes frames at full source resolution before applying max_pixels limits. Remote attackers can submit high-resolution videos to /v1/chat/completions on Qwen-VL deployments, and concurrent requests exhaust worker memory causing denial of service.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-770"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109227.json"
}
References

Affected packages

Git / github.com/sgl-project/sglang

Affected ranges

Type
GIT
Repo
https://github.com/sgl-project/sglang
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e00930c5489053f26d86b179cee0d087f846acbb
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "0.5.21"
        },
        {
            "fixed":  "0.5.21"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

gateway-v0.*
gateway-v0.1.5
gateway-v0.1.6
gateway-v0.1.7
gateway-v0.1.8
gateway-v0.1.9
gateway-v0.2.0
gateway-v0.2.1
gateway-v0.2.2
gateway-v0.2.3
gateway-v0.2.4
gateway-v0.3.0
gateway-v0.3.1
v0.*
v0.1.10
v0.1.11
v0.1.12
v0.1.13
v0.1.14
v0.1.15
v0.1.16
v0.1.17
v0.1.18
v0.1.19
v0.1.20
v0.1.21
v0.1.22
v0.1.23
v0.1.24
v0.1.3
v0.1.5
v0.1.6
v0.1.7
v0.1.8
v0.1.9
v0.2.0
v0.2.10
v0.2.11
v0.2.12
v0.2.13
v0.2.14
v0.2.14.post1
v0.2.14.post2
v0.2.15
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v0.2.9.post1
v0.3.0
v0.3.1.post1
v0.3.1.post2
v0.3.1.post3
v0.3.2
v0.3.3
v0.3.3.post1
v0.3.4
v0.3.4.post1
v0.3.4.post2
v0.3.5
v0.3.5.post1
v0.3.5.post2
v0.3.6
v0.3.6.post1
v0.3.6.post2
v0.3.6.post3
v0.4.0
v0.4.0.post1
v0.4.0.post2
v0.4.1
v0.4.1.post1
v0.4.1.post2
v0.4.1.post3
v0.4.1.post4
v0.4.1.post5
v0.4.1.post6
v0.4.1.post7
v0.4.10
v0.4.10.post1
v0.4.10.post2
v0.4.2
v0.4.2.post1
v0.4.2.post2
v0.4.2.post3
v0.4.2.post4
v0.4.3
v0.4.3.post1
v0.4.3.post2
v0.4.3.post3
v0.4.3.post4
v0.4.4
v0.4.4.post1
v0.4.4.post2
v0.4.4.post3
v0.4.4.post4
v0.4.5
v0.4.5.post1
v0.4.5.post2
v0.4.5.post3
v0.4.6
v0.4.6.post1
v0.4.6.post2
v0.4.6.post3
v0.4.6.post4
v0.4.6.post5
v0.4.7
v0.4.7.post1
v0.4.8
v0.4.8.post1
v0.4.9
v0.4.9.post1
v0.4.9.post2
v0.4.9.post3
v0.4.9.post4
v0.4.9.post5
v0.4.9.post6
v0.5.0rc0
v0.5.0rc1
v0.5.0rc2
v0.5.1
v0.5.1.post1
v0.5.1.post2
v0.5.1.post3
v0.5.2
v0.5.2rc0
v0.5.2rc1
v0.5.2rc2
v0.5.3
v0.5.3.post1
v0.5.3.post2
v0.5.3.post3
v0.5.3rc0
v0.5.3rc1
v0.5.3rc2
v0.5.4
v0.5.4.post1
v0.5.4.post2
v0.5.4.post3
v0.5.5
v0.5.5.post1
v0.5.5.post2
v0.5.5.post3
v0.5.6
v0.5.6.post1
v0.5.6.post2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109227.json"