MediumFix available
asm — security advisory
OW2 ASM 1.4.3 before 9.11 contains an excessive resource consumption vulnerability in Analyzer.analyze() that allows attackers to exhaust memory and CPU via crafted class files. Attackers can supply class files analysed through BasicVerifier, SimpleVerifier or SourceInterpreter to trigger unbounded per-instruction Frame allocation and fix point iterations, causing denial of service.
- Products
- asm
- Affected versions
- 9.10.1-1, 9.11.1-1, 9.4-1, 9.5-1, 9.7-1, 9.7-2, 9.7.1-1, 9.8-1, 9.8-2, 9.9.1-1
- Fixed versions
- 9.11.1-1
- CVEs
- CVE-2026-110591
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 03:44 UTC · Revision 1
Source evidence
OW2 ASM 1.4.3 before 9.11 contains an excessive resource consumption vulnerability in Analyzer.analyze() that allows attackers to exhaust memory and CPU via crafted class files. Attackers can supply class files analysed through BasicVerifier, SimpleVerifier or SourceInterpreter to trigger unbounded per-instruction Frame allocation and fix point iterations, causing denial of service.
osv:DEBIAN-CVE-2026-110591
asm
Fixed versions: Not specified
asm
Fixed versions: Not specified
asm
Fixed versions: 9.11.1-1
Complete source record
{
"id": "5a036aed0fef7a2963141e0ff66b8a256e4d14d3a50f8536b2348fb0289930a8",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-110591",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-110591",
"summary": "OW2 ASM 1.4.3 before 9.11 contains an excessive resource consumption vulnerability in Analyzer.analyze() that allows attackers to exhaust memory and CPU via crafted class files. Attackers can supply class files analysed through BasicVerifier, SimpleVerifier or SourceInterpreter to trigger unbounded per-instruction Frame allocation and fix point iterations, causing denial of service.",
"evidence": "osv:DEBIAN-CVE-2026-110591",
"products": [
{
"name": {
"value": "asm",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.10.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.11.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.5-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.7-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.7-2",
"evidence": "/affected/0/versions"
},
{
"value": "9.7.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.8-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.8-2",
"evidence": "/affected/0/versions"
},
{
"value": "9.9.1-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "asm",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.10.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "9.11.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "9.8-1",
"evidence": "/affected/1/versions"
},
{
"value": "9.8-2",
"evidence": "/affected/1/versions"
},
{
"value": "9.9.1-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "asm",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.11.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "9.10.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.8-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.8-2",
"evidence": "/affected/2/versions"
},
{
"value": "9.9.1-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-110591",
"aliases": [
"DEBIAN-CVE-2026-110591"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "asm",
"purl": "pkg:deb/debian/asm?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"9.10.1-1",
"9.11.1-1",
"9.4-1",
"9.5-1",
"9.7-1",
"9.7-2",
"9.7.1-1",
"9.8-1",
"9.8-2",
"9.9.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110591.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "asm",
"purl": "pkg:deb/debian/asm?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"9.10.1-1",
"9.11.1-1",
"9.8-1",
"9.8-2",
"9.9.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110591.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.11.1-1"
}
]
}
],
"package": {
"name": "asm",
"purl": "pkg:deb/debian/asm?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"9.10.1-1",
"9.8-1",
"9.8-2",
"9.9.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110591.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-24T05:00:45.348423799Z",
"provider": "osv",
"upstream": [
"CVE-2026-110591"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-110591"
]
},
"related_cves": [
{
"value": "CVE-2026-110591",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 428205,
"published_at": "2026-10-14T15:17:09.91+00:00"
}