CVE-2026-109229CWE-409

CVE-2026-109229

High · published October 12, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
35.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00422 · 35.5th percentile
Weakness
CWE-409 · Improper Handling of Highly Compressed Data (Data Amplification)
Published
2026-10-12T18:17Z
References (6)
https://github.com/sgl-project/sglang · [email protected]https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/multimodal/processors/nano_nemotron_vl.py#L82 · [email protected]https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/utils/common.py#L1952-L1961 · [email protected]https://github.com/sgl-project/sglang/issues/43707 · [email protected]https://www.vulncheck.com/advisories/sglang-through-0.5.21-decompression-bomb-dos-via-nanonemotronvlimageprocessor · [email protected]https://github.com/sgl-project/sglang/issues/43707 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 14:04Z
    SGLang through 0.5.21 Decompression Bomb DoS via NanoNemotronVLImageProcessor
    cvelistv5
  • 12 OCT 14:04Z
    SGLang through 0.5.21 Decompression Bomb DoS via NanoNemotronVLImageProcessor
    cvelistv5