CVE-2026-109229

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/sgl-project/sglang
https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/multimodal/processors/nano_nemotron_vl.py#L82
https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/utils/common.py#L1952-L1961
https://github.com/sgl-project/sglang/issues/43707
https://www.vulncheck.com/advisories/sglang-through-0.5.21-decompression-bomb-dos-via-nanonemotronvlimageprocessor
https://github.com/sgl-project/sglang/issues/43707

Configurations

No configuration.

History

13 Oct 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://github.com/sgl-project/sglang/issues/43707 -~~	() https://github.com/sgl-project/sglang/issues/43707 -

12 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-12 14:17

Updated : 2026-10-13 16:17

NVD link : CVE-2026-109229

Mitre link : CVE-2026-109229

CVE.ORG link : CVE-2026-109229

JSON object : View

Products Affected

No product.

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

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