MediumFix available
asm — security advisory
OW2 ASM 3.0 before 9.11 contains a quadratic memory allocation vulnerability in MethodWriter.computeMaxStackAndLocal() and computeAllFrames() when using COMPUTE_MAXS or COMPUTE_FRAMES. Attackers can supply a crafted class file with thousands of overlapping exception handlers, causing excessive Edge allocations and an OutOfMemoryError that crashes the JVM.
- 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-2026-110260
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 03:44 UTC · Revision 1
Source evidence
OW2 ASM 3.0 before 9.11 contains a quadratic memory allocation vulnerability in MethodWriter.computeMaxStackAndLocal() and computeAllFrames() when using COMPUTE_MAXS or COMPUTE_FRAMES. Attackers can supply a crafted class file with thousands of overlapping exception handlers, causing excessive Edge allocations and an OutOfMemoryError that crashes the JVM.
osv:DEBIAN-CVE-2026-110260
asm
Fixed versions: Not specified
asm
Fixed versions: Not specified
asm
Fixed versions: 9.11.1-1
Complete source record
{
"id": "bb029fcaf88539d882b220a71bd037cbede3ccfa4df2ff2d48cfdeb8cddb4137",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-110260",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-110260",
"summary": "OW2 ASM 3.0 before 9.11 contains a quadratic memory allocation vulnerability in MethodWriter.computeMaxStackAndLocal() and computeAllFrames() when using COMPUTE_MAXS or COMPUTE_FRAMES. Attackers can supply a crafted class file with thousands of overlapping exception handlers, causing excessive Edge allocations and an OutOfMemoryError that crashes the JVM.",
"evidence": "osv:DEBIAN-CVE-2026-110260",
"products": [
{
"name": {
"value": "asm",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
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"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"
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{
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"evidence": "/affected/0/versions"
}
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{
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{
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{
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{
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{
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},
{
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}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-110260",
"aliases": [
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],
"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": [
{
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{
"type": "ECOSYSTEM",
"events": [
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],
"package": {
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"purl": "pkg:deb/debian/asm?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
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"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-2026-110260.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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]
}
],
"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-2026-110260.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "9.11.1-1"
}
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],
"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-2026-110260.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-24T05:00:44.241576550Z",
"provider": "osv",
"upstream": [
"CVE-2026-110260"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-110260"
]
},
"related_cves": [
{
"value": "CVE-2026-110260",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 428202,
"published_at": "2026-10-14T15:17:07.793+00:00"
}