ALPINE-CVE-2026-11940
tarfile.extractall() with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name than the hardlink itself. The extraction fallback validated the symlink at it's archived location but recreated it at the hardlink's shallower path, letting a relative target the filter judged contained escape the destination directory. This allowed a malicious tar archive to create a symlink pointing outside the destination, enabling out-of-destination file reads or writes. This was an incomplete fix of CVE-2025-4330.
ALPINE-CVE-2026-11940
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:ALPINE-CVE-2026-11940
python3
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 3.12.14-r0
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
python3
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 3.12.14-r0
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
python3
Source reference: /affected/2/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 3.12.14-r0
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
python3
Source reference: /affected/3/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 3.14.7-r0
Source reference:
/affected/3/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.12.14-r0"
}
]
}
],
"package": {
"name": "python3",
"purl": "pkg:apk/alpine/python3?arch=source",
"ecosystem": "Alpine:v3.21"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-11940.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.12.14-r0"
}
]
}
],
"package": {
"name": "python3",
"purl": "pkg:apk/alpine/python3?arch=source",
"ecosystem": "Alpine:v3.22"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-11940.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.12.14-r0"
}
]
}
],
"package": {
"name": "python3",
"purl": "pkg:apk/alpine/python3?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-11940.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.14.7-r0"
}
]
}
],
"package": {
"name": "python3",
"purl": "pkg:apk/alpine/python3?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-11940.json"
},
"ecosystem_specific": {}
}
]Publisher severity
No explicit severity was provided.
- Event
- #52191 · Revision 1
- Added to Heist Feed
- Publisher date