SGLang has an Improper Input Validation/Injection Issue
A vulnerability was detected in sgl-project SGLang up to 0.5.9. Impacted is the function get_tokenizer of the file python/sglang/srt/utils/hf_transformers_utils.py of the component HuggingFace Transformer Handler. The manipulation results in deserialization. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitability is considered difficult. The vendor was contacted early about this disclosure but did not respond in any way.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | sglang | <= 0.5.9 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-7669
- https://github.com/gouldnicholas/CVE-2026-7669-PoC
- https://github.com/sgl-project/sglang
- https://vuldb.com/submit/799263
- https://vuldb.com/vuln/360817
- https://vuldb.com/vuln/360817/cti
- https://pypi.org/project/sglang
- https://github.com/advisories/GHSA-6m5f-673f-5vh7
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-20, CWE-74- Platform
- Python (PyPI)
- Package
sglang- Disclosed
- 03.05.2026
- Updated
- 11.10.2026 14:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-3062 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-6m5f-673f-5vh7 - CC BY 4.0
Vulnerability history: sglang
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 09.2025 06.2026
- Without a fix
- 6
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 1
- Medium 2
- Low 2
Disclosures per year
- 2025: 1
- 2026: 9
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SGLang has an Improper Input Validation/Injection Issue this entry
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