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SGLang through 0.5.21 Decompression Bomb DoS via NanoNemotronVLImageProcessor

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-109229

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-109229

sglang

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/sgl-project/sglang",
    "vendor": "sgl-project",
    "product": "sglang",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "0.5.21"
      }
    ],
    "packageURL": "pkg:pypi/sglang",
    "collectionURL": "https://pypi.org/project/sglang",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-109229

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#20308 · Revision 1
Added to Heist Feed
Publisher date
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