HighFix available
pypy3, python3.11 — security advisory
An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior. The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.
- Products
- pypy3, python3.11
- Affected versions
- 3.11.2-6, 3.11.2-6+deb12u1, 7.3.11+dfsg-2, 7.3.11+dfsg-2+deb12u1
- Fixed versions
- 3.11.2-6+deb12u2, 7.3.11+dfsg-2+deb12u2, 7.3.13+dfsg-1
- CVEs
- CVE-2023-6597
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:53 UTC · Revision 1
Source evidence
An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior. The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.
osv:DEBIAN-CVE-2023-6597
pypy3
Fixed versions: 7.3.11+dfsg-2+deb12u2
pypy3
Fixed versions: 7.3.13+dfsg-1
pypy3
Fixed versions: 7.3.13+dfsg-1
python3.11
Fixed versions: 3.11.2-6+deb12u2
Complete source record
{
"id": "cfe37189ea4d78020e9b9a5892d44855138a796870c66436abc69b3ca47737ee",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-6597",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-6597",
"summary": "An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior. The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.",
"evidence": "osv:DEBIAN-CVE-2023-6597",
"products": [
{
"name": {
"value": "pypy3",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.3.11+dfsg-2+deb12u2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "7.3.11+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.11+dfsg-2+deb12u1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "pypy3",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.3.13+dfsg-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "pypy3",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.3.13+dfsg-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3.11",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.11.2-6+deb12u2",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": [
{
"value": "3.11.2-6",
"evidence": "/affected/3/versions"
},
{
"value": "3.11.2-6+deb12u1",
"evidence": "/affected/3/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2023-6597",
"aliases": [
"DEBIAN-CVE-2023-6597"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.3.11+dfsg-2+deb12u2"
}
]
}
],
"package": {
"name": "pypy3",
"purl": "pkg:deb/debian/pypy3?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"7.3.11+dfsg-2",
"7.3.11+dfsg-2+deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-6597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.3.13+dfsg-1"
}
]
}
],
"package": {
"name": "pypy3",
"purl": "pkg:deb/debian/pypy3?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-6597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.3.13+dfsg-1"
}
]
}
],
"package": {
"name": "pypy3",
"purl": "pkg:deb/debian/pypy3?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-6597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.11.2-6+deb12u2"
}
]
}
],
"package": {
"name": "python3.11",
"purl": "pkg:deb/debian/python3.11?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.11.2-6",
"3.11.2-6+deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-6597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:02:21.302176137Z",
"provider": "osv",
"upstream": [
"CVE-2023-6597"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-6597"
]
},
"related_cves": [
{
"value": "CVE-2023-6597",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 455973,
"published_at": "2024-03-19T16:15:08.743+00:00"
}