High
wabt — security advisory
A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.
- Products
- wabt
- Affected versions
- 1.0.11-1, 1.0.12-1, 1.0.13-1, 1.0.13-1build1, 1.0.20-1, 1.0.24-1, 1.0.24-2, 1.0.25-1, 1.0.26-1, 1.0.27-1, 1.0.33-1, 1.0.34+dsfg2+~cs1.0.32-1ubuntu1, 1.0.34+dsfg2+~cs1.0.32-1ubuntu2, 1.0.34-1, 1.0.36+dfsg+~cs1.0.36-2ubuntu1, 1.0.36+dfsg+~cs1.0.36-2ubuntu4
- Fixed versions
- Not specified
- CVEs
- CVE-2025-15412
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:25 UTC · Revision 1
Source evidence
A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.
osv:UBUNTU-CVE-2025-15412
wabt
Fixed versions: Not specified
wabt
Fixed versions: Not specified
wabt
Fixed versions: Not specified
wabt
Fixed versions: Not specified
wabt
Fixed versions: Not specified
wabt
Fixed versions: Not specified
Complete source record
{
"id": "75eccb0c3468296dce907c88bd70cc02f80e41674dcafc946ce5ec7ea1d9fa4e",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-15412",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-15412",
"summary": "A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.",
"evidence": "osv:UBUNTU-CVE-2025-15412",
"products": [
{
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"evidence": "/affected/0/package/name"
},
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"affected_versions": [
{
"value": "1.0.11-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.0.12-1",
"evidence": "/affected/0/versions"
},
{
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},
{
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}
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{
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"affected_versions": [
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"evidence": "/affected/1/versions"
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{
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"evidence": "/affected/1/versions"
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{
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"evidence": "/affected/1/versions"
},
{
"value": "1.0.25-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.26-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.27-1",
"evidence": "/affected/1/versions"
}
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},
{
"name": {
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"evidence": "/affected/2/package/name"
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"affected_versions": [
{
"value": "1.0.33-1",
"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
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{
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{
"name": {
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"evidence": "/affected/3/versions"
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{
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"evidence": "/affected/3/versions"
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]
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{
"name": {
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"affected_versions": [
{
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"evidence": "/affected/4/versions"
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{
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"evidence": "/affected/4/versions"
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{
"name": {
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},
"prerequisites": [],
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"affected_versions": [
{
"value": "1.0.36+dfsg+~cs1.0.36-2ubuntu1",
"evidence": "/affected/5/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2025-15412",
"aliases": [
"UBUNTU-CVE-2025-15412"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
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{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/wabt?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
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"1.0.12-1",
"1.0.13-1",
"1.0.13-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-15412.json"
},
"ecosystem_specific": {
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"binary_version": "1.0.13-1build1"
}
]
}
},
{
"ranges": [
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"events": [
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],
"package": {
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"purl": "pkg:deb/ubuntu/wabt?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.0.20-1",
"1.0.24-1",
"1.0.24-2",
"1.0.25-1",
"1.0.26-1",
"1.0.27-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-15412.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "wabt",
"binary_version": "1.0.27-1"
}
]
}
},
{
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],
"package": {
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"purl": "pkg:deb/ubuntu/wabt?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
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"1.0.34-1",
"1.0.34+dsfg2+~cs1.0.32-1ubuntu1",
"1.0.34+dsfg2+~cs1.0.32-1ubuntu2"
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"database_specific": {
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},
"ecosystem_specific": {
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{
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"ecosystem": "Ubuntu:25.10"
},
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},
"versions": [
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"1.0.36+dfsg+~cs1.0.36-2ubuntu4"
],
"database_specific": {
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},
"ecosystem_specific": {
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},
{
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"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"1.0.36+dfsg+~cs1.0.36-2ubuntu1"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "wabt",
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]
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}
],
"modified": "2026-10-17T12:56:48.182920681Z",
"provider": "osv",
"upstream": [
"CVE-2025-15412"
],
"references": [
"https://ubuntu.com/security/CVE-2025-15412",
"https://www.cve.org/CVERecord?id=CVE-2025-15412",
"https://github.com/WebAssembly/wabt/issues/2678",
"https://github.com/oneafter/1208/blob/main/af1",
"https://vuldb.com/?ctiid.339333",
"https://vuldb.com/?id.339333",
"https://vuldb.com/?submit.719826"
]
},
"related_cves": [
{
"value": "CVE-2025-15412",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 356319,
"published_at": "2026-01-01T21:15:00+00:00"
}