High
SGLang through 0.5.21 Decompression Bomb DoS via NanoNemotronVLImageProcessor
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-109229
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 02:33 UTC · Revision 1
Source evidence
SGLang through 0.5.21 Decompression Bomb DoS via NanoNemotronVLImageProcessor
core-osv · Original sourcePublished 12 Oct 2026, 14:04 UTC
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.
osv:CVE-2026-109229
Complete source record
{
"id": "6d0e2535fcfd7703eb0798d24a19f8471f7a07707767d71ae8ff1602694ecb91",
"url": "https://osv.dev/vulnerability/CVE-2026-109229",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "SGLang through 0.5.21 Decompression Bomb DoS via NanoNemotronVLImageProcessor",
"summary": "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.",
"evidence": "osv:CVE-2026-109229",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-109229",
"aliases": [
"CVE-2026-109229"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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": [
{
"ranges": [
{
"repo": "https://github.com/sgl-project/sglang",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "e00930c5489053f26d86b179cee0d087f846acbb"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"last_affected": "0.5.21"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"last_affected": "0.5.21"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
"versions": [
"v0.5.21",
"gateway-v0.3.1",
"gateway-v0.3.0",
"v0.5.6.post2",
"gateway-v0.2.4",
"v0.5.6.post1",
"v0.5.6",
"v0.5.5",
"v0.5.5.post3",
"gateway-v0.2.3",
"v0.5.5.post2",
"v0.5.5.post1",
"v0.5.4.post3",
"v0.5.4.post2",
"gateway-v0.2.2",
"v0.5.4.post1",
"v0.5.4",
"gateway-v0.2.1",
"v0.5.3.post3",
"v0.5.3.post2",
"gateway-v0.2.0",
"v0.5.3.post1",
"v0.5.3",
"v0.5.3rc2",
"v0.5.3rc1",
"v0.5.3rc0",
"v0.5.2",
"v0.5.2rc2",
"v0.5.2rc1",
"v0.5.2rc0",
"v0.5.1.post3",
"v0.5.1.post2",
"v0.5.1.post1",
"v0.5.1",
"v0.5.0rc2",
"v0.5.0rc1",
"v0.5.0rc0",
"gateway-v0.1.9",
"v0.4.10.post2",
"v0.4.10.post1",
"gateway-v0.1.8",
"gateway-v0.1.7",
"v0.4.10",
"v0.4.9.post6",
"v0.4.9.post5",
"v0.4.9.post4",
"v0.4.9.post3",
"gateway-v0.1.6",
"v0.4.9.post2",
"v0.4.9.post1",
"gateway-v0.1.5",
"v0.4.9",
"v0.4.8.post1",
"v0.4.8",
"v0.4.7.post1",
"v0.4.7",
"v0.4.6.post5",
"v0.4.6.post4",
"v0.4.6.post3",
"v0.4.6.post2",
"v0.4.6.post1",
"v0.4.6",
"v0.4.5.post3",
"v0.4.5.post2",
"v0.4.5.post1",
"v0.4.5",
"v0.4.4.post4",
"v0.4.4.post3",
"v0.4.4.post2",
"v0.4.4.post1",
"v0.4.4",
"v0.4.3.post4",
"v0.4.3.post3",
"v0.4.3.post2",
"v0.4.3.post1",
"v0.4.3",
"v0.4.2.post4",
"v0.4.2.post3",
"v0.4.2.post2",
"v0.4.2.post1",
"v0.4.2",
"v0.4.1.post7",
"v0.4.1.post6",
"v0.4.1.post5",
"v0.4.1.post4",
"v0.4.1.post3",
"v0.4.1.post2",
"v0.4.1.post1",
"v0.4.1",
"v0.4.0.post2",
"v0.4.0.post1",
"v0.4.0",
"v0.3.6.post3",
"v0.3.6.post2",
"v0.3.6.post1",
"v0.3.6",
"v0.3.5.post2",
"v0.3.5.post1",
"v0.3.5",
"v0.3.4.post2",
"v0.3.4.post1",
"v0.3.4",
"v0.3.3.post1",
"v0.3.3",
"v0.3.2",
"v0.3.1.post3",
"v0.3.1.post2",
"v0.3.1.post1",
"v0.3.0",
"v0.2.15",
"v0.2.14.post2",
"v0.2.14.post1",
"v0.2.14",
"v0.2.13",
"v0.2.12",
"v0.2.11",
"v0.2.10",
"v0.2.9.post1",
"v0.2.9",
"v0.2.8",
"v0.2.7",
"v0.2.6",
"v0.2.5",
"v0.2.0",
"v0.1.24",
"v0.1.23",
"v0.1.22",
"v0.1.21",
"v0.1.20",
"v0.1.19",
"v0.1.18",
"v0.1.17",
"v0.1.16",
"v0.1.15",
"v0.1.14",
"v0.1.13",
"v0.1.12",
"v0.1.11",
"v0.1.10",
"v0.1.9",
"v0.1.8",
"v0.1.7",
"v0.1.6",
"v0.1.5",
"v0.1.3"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109229.json"
}
}
],
"modified": "2026-10-28T02:30:25.434371592Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109229.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-109229",
"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",
"https://pypi.org/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"
],
"provider_metadata": {
"cwe_ids": [
"CWE-409"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109229.json"
}
},
"related_cves": [
{
"value": "CVE-2026-109229",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 491931,
"published_at": "2026-10-12T14:04:32.719+00:00"
}