CVE-2026-109229: high-severity vulnerability in sgl-project sglang
SGLang through 0.5.21 Decompression Bomb DoS via NanoNemotronVLImageProcessor
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.5%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
sgl-project · sglangRelated CVEs — sgl-project sglang
In the same product, most dangerous first.
CVE-2026-93688HIGHSGLang through 0.5.19 Unbounded Memory Allocation via bootstrap_roomEPSS 0.7%CVE-2026-93838HIGHSGLang through 0.5.20 Unbounded Memory Allocation via STAGING_REQ chunk_idxEPSS 0.7%CVE-2026-102634HIGHSGLang through 0.5.20 Denial of Service via Duplicate bootstrap_roomEPSS 0.6%CVE-2026-109226HIGHSGLang through 0.5.21 Audio Decompression Amplification via load_audioEPSS 0.6%CVE-2026-109227HIGHSGLang through 0.5.21 Memory Exhaustion DoS via Qwen-VL Video PreprocessingEPSS 0.5%CVE-2026-109228HIGHSGLang through 0.5.21 Resource Budget Bypass via GLM-V Video ParametersEPSS 0.5%
References
https://github.com/sgl-project/sglanghttps://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/multimodal/processors/nano_nemotron_vl.py#L82https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/utils/common.py#L1952-L1961https://github.com/sgl-project/sglang/issues/43707https://www.vulncheck.com/advisories/sglang-through-0.5.21-decompression-bomb-dos-via-nanonemotronvlimageprocessor