HighFix available
rust-bumpalo — security advisory
An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.
- Products
- rust-bumpalo
- Affected versions
- Not specified
- Fixed versions
- 3.2.1-1
- CVEs
- CVE-2020-35861
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:47 UTC · Revision 1
Source evidence
An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.
osv:DEBIAN-CVE-2020-35861
rust-bumpalo
Fixed versions: 3.2.1-1
rust-bumpalo
Fixed versions: 3.2.1-1
rust-bumpalo
Fixed versions: 3.2.1-1
Complete source record
{
"id": "eeafa2f4a204b6b7c7628e0dd2df69b8878b5f8b686dd7591a921c29de305953",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-35861",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-35861",
"summary": "An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.",
"evidence": "osv:DEBIAN-CVE-2020-35861",
"products": [
{
"name": {
"value": "rust-bumpalo",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.1-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rust-bumpalo",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rust-bumpalo",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2020-35861",
"aliases": [
"DEBIAN-CVE-2020-35861"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.1-1"
}
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}
],
"package": {
"name": "rust-bumpalo",
"purl": "pkg:deb/debian/rust-bumpalo?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-35861.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
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{
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],
"package": {
"name": "rust-bumpalo",
"purl": "pkg:deb/debian/rust-bumpalo?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-35861.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
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{
"fixed": "3.2.1-1"
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}
],
"package": {
"name": "rust-bumpalo",
"purl": "pkg:deb/debian/rust-bumpalo?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-35861.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:00:52.034521484Z",
"provider": "osv",
"upstream": [
"CVE-2020-35861"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-35861"
]
},
"related_cves": [
{
"value": "CVE-2020-35861",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451362,
"published_at": "2020-12-31T10:15:14.987+00:00"
}