Vulnerability DatabaseCVE-2026-109229
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CVE-2026-109229
Published:October 12, 2026
Updated:October 13, 2026
SGLang through 0.5.21 contains a denial of service vulnerability that disables Pillow decompression bomb protection process-wide by setting Image.MAX_IMAGE_PIXELS to None in NanoNemotronVLImageProcessor. Remote attackers can submit small, highly compressed images with huge dimensions to the generic image loader, exhausting worker memory during decoding.
Related Resources (8)
https://www.vulncheck.com/advisories/sglang-through-0.5.21-decompression-bomb-dos-via-nanonemotronvlimageprocessor
https://github.com/sgl-project/sglang/issues/43707
https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/multimodal/processors/nano_nemotron_vl.py#L82
https://pypi.org/project/sglang
https://nvd.nist.gov/vuln/detail/CVE-2026-109229
https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/utils/common.py#L1952-L1961
https://github.com/sgl-project/sglang
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109229.json
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Handling of Highly Compressed Data (Data Amplification)
CWE-409
EPSS
Base Score:
0.42