UnratedFix available
python3: Fix of 4 CVEs
Type: advisorySources: OSV
- CVE-2026-11940: pass filter_function through TarFile.extract() so the hardlink-extraction fallback is filtered (prerequisite) - CVE-2026-11940: filter the symlink at the hardlink's own path so a hardlink to a deeper symlink cannot recreate it at a shallower path and escape the destination directory - CVE-2026-82049: resolve a hardlink's target with os.path.realpath() so extracting a hard link to a symlink cannot relocate that symlink and expose or modify files outside the destination
- Products
- python3, python3-debug, python3-devel, python3-idle, python3-libs, python3-test, python3-tkinter
- Affected versions
- Not specified
- Fixed versions
- 3.6.8-21.0.13.el7_9.tuxcare.els4
- CVEs
- CVE-2026-11940, CVE-2026-82049
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:33 UTC · Revision 1
Source evidence
- CVE-2026-11940: pass filter_function through TarFile.extract() so the hardlink-extraction fallback is filtered (prerequisite) - CVE-2026-11940: filter the symlink at the hardlink's own path so a hardlink to a deeper symlink cannot recreate it at a shallower path and escape the destination directory - CVE-2026-82049: resolve a hardlink's target with os.path.realpath() so extracting a hard link to a symlink cannot relocate that symlink and expose or modify files outside the destination
osv:CLSA-2026-1791897945
python3
Fixed versions: 3.6.8-21.0.13.el7_9.tuxcare.els4
python3-debug
Fixed versions: 3.6.8-21.0.13.el7_9.tuxcare.els4
python3-devel
Fixed versions: 3.6.8-21.0.13.el7_9.tuxcare.els4
python3-idle
Fixed versions: 3.6.8-21.0.13.el7_9.tuxcare.els4
python3-libs
Fixed versions: 3.6.8-21.0.13.el7_9.tuxcare.els4
python3-test
Fixed versions: 3.6.8-21.0.13.el7_9.tuxcare.els4
python3-tkinter
Fixed versions: 3.6.8-21.0.13.el7_9.tuxcare.els4
Complete source record
{
"id": "80e56fafa97a67259a9483930832dfe076271d6f8cf53337a8ea088164c92d80",
"url": "https://osv.dev/vulnerability/CLSA-2026-1791897945",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "python3: Fix of 4 CVEs",
"summary": "- CVE-2026-11940: pass filter_function through TarFile.extract() so the hardlink-extraction fallback is filtered (prerequisite) - CVE-2026-11940: filter the symlink at the hardlink's own path so a hardlink to a deeper symlink cannot recreate it at a shallower path and escape the destination directory - CVE-2026-82049: resolve a hardlink's target with os.path.realpath() so extracting a hard link to a symlink cannot relocate that symlink and expose or modify files outside the destination",
"evidence": "osv:CLSA-2026-1791897945",
"products": [
{
"name": {
"value": "python3",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.8-21.0.13.el7_9.tuxcare.els4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-debug",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.8-21.0.13.el7_9.tuxcare.els4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-devel",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.8-21.0.13.el7_9.tuxcare.els4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-idle",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.8-21.0.13.el7_9.tuxcare.els4",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-libs",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.8-21.0.13.el7_9.tuxcare.els4",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-test",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.8-21.0.13.el7_9.tuxcare.els4",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-tkinter",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.8-21.0.13.el7_9.tuxcare.els4",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1791897945",
"aliases": [
"CLSA-2026-1791897945"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.8-21.0.13.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "python3",
"purl": "pkg:rpm/tuxcare/python3?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791897945.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.8-21.0.13.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "python3-debug",
"purl": "pkg:rpm/tuxcare/python3-debug?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791897945.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.8-21.0.13.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "python3-devel",
"purl": "pkg:rpm/tuxcare/python3-devel?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791897945.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.8-21.0.13.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "python3-idle",
"purl": "pkg:rpm/tuxcare/python3-idle?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791897945.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.8-21.0.13.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "python3-libs",
"purl": "pkg:rpm/tuxcare/python3-libs?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791897945.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.8-21.0.13.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "python3-test",
"purl": "pkg:rpm/tuxcare/python3-test?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791897945.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.8-21.0.13.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "python3-tkinter",
"purl": "pkg:rpm/tuxcare/python3-tkinter?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791897945.json"
}
}
],
"modified": "2026-10-26T09:31:57.115323159Z",
"provider": "osv",
"upstream": [
"CVE-2026-11940",
"CVE-2026-82049"
],
"references": [
"https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1791897945.html",
"https://nvd.nist.gov/vuln/detail/CVE-2024-4032",
"https://nvd.nist.gov/vuln/detail/CVE-2026-11940",
"https://nvd.nist.gov/vuln/detail/CVE-2026-6100",
"https://nvd.nist.gov/vuln/detail/CVE-2026-82049"
]
},
"related_cves": [
{
"value": "CVE-2026-11940",
"evidence": "/upstream"
},
{
"value": "CVE-2026-82049",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449109,
"published_at": "2026-10-19T17:46:20+00:00"
}