python: Fix of 3 CVEs
- CVE-2026-82049: resolve a hard link's target with os.path.realpath() before creating the link, so extracting a hard link to a symlink stored deeper in the archive cannot relocate that symlink to a shallower path where its relative target escapes the destination directory - CVE-2026-11940: re-filter the fallback member when hard link extraction falls back to extracting from the archive, and filter it under the link's own name, so a hard link to a deeper symlink cannot recreate that symlink at a shallower path outside the destination. Carries the CVE-2025-4330 fallback-filtering prerequisite (LinkFallbackError and makelink_with_filter), which this package did not have - CVE-2025-4435: skip a member the extraction filter rejects instead of extracting it unfiltered when TarFile.errorlevel is 0
- Products
- python, python-debug, python-devel, python-libs, python-test, python-tools, tkinter
- Affected versions
- Not specified
- Fixed versions
- 2.7.5-94.0.9.el7_9.tuxcare.els3
- CVEs
- CVE-2025-4330, CVE-2025-4435, CVE-2026-11940, CVE-2026-82049
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:54 UTC · Revision 1
Source evidence
- CVE-2026-82049: resolve a hard link's target with os.path.realpath() before creating the link, so extracting a hard link to a symlink stored deeper in the archive cannot relocate that symlink to a shallower path where its relative target escapes the destination directory - CVE-2026-11940: re-filter the fallback member when hard link extraction falls back to extracting from the archive, and filter it under the link's own name, so a hard link to a deeper symlink cannot recreate that symlink at a shallower path outside the destination. Carries the CVE-2025-4330 fallback-filtering prerequisite (LinkFallbackError and makelink_with_filter), which this package did not have - CVE-2025-4435: skip a member the extraction filter rejects instead of extracting it unfiltered when TarFile.errorlevel is 0
osv:CLSA-2026-1791486224
python
Fixed versions: 2.7.5-94.0.9.el7_9.tuxcare.els3
python-debug
Fixed versions: 2.7.5-94.0.9.el7_9.tuxcare.els3
python-devel
Fixed versions: 2.7.5-94.0.9.el7_9.tuxcare.els3
python-libs
Fixed versions: 2.7.5-94.0.9.el7_9.tuxcare.els3
python-test
Fixed versions: 2.7.5-94.0.9.el7_9.tuxcare.els3
python-tools
Fixed versions: 2.7.5-94.0.9.el7_9.tuxcare.els3
tkinter
Fixed versions: 2.7.5-94.0.9.el7_9.tuxcare.els3
Complete source record
{
"id": "487733154417c344cc42a0869cbabd178211abfbb170016ad63640f89777c5b7",
"url": "https://osv.dev/vulnerability/CLSA-2026-1791486224",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "python: Fix of 3 CVEs",
"summary": "- CVE-2026-82049: resolve a hard link's target with os.path.realpath() before creating the link, so extracting a hard link to a symlink stored deeper in the archive cannot relocate that symlink to a shallower path where its relative target escapes the destination directory - CVE-2026-11940: re-filter the fallback member when hard link extraction falls back to extracting from the archive, and filter it under the link's own name, so a hard link to a deeper symlink cannot recreate that symlink at a shallower path outside the destination. Carries the CVE-2025-4330 fallback-filtering prerequisite (LinkFallbackError and makelink_with_filter), which this package did not have - CVE-2025-4435: skip a member the extraction filter rejects instead of extracting it unfiltered when TarFile.errorlevel is 0",
"evidence": "osv:CLSA-2026-1791486224",
"products": [
{
"name": {
"value": "python",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7.5-94.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python-debug",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7.5-94.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python-devel",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7.5-94.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python-libs",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7.5-94.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python-test",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7.5-94.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python-tools",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7.5-94.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tkinter",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7.5-94.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1791486224",
"aliases": [
"CLSA-2026-1791486224"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.5-94.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "python",
"purl": "pkg:rpm/tuxcare/python?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791486224.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.5-94.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "python-debug",
"purl": "pkg:rpm/tuxcare/python-debug?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791486224.json"
}
},
{
"ranges": [
{
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{
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{
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}
]
}
],
"package": {
"name": "python-devel",
"purl": "pkg:rpm/tuxcare/python-devel?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791486224.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
"introduced": "0"
},
{
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}
]
}
],
"package": {
"name": "python-libs",
"purl": "pkg:rpm/tuxcare/python-libs?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791486224.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
"introduced": "0"
},
{
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}
]
}
],
"package": {
"name": "python-test",
"purl": "pkg:rpm/tuxcare/python-test?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791486224.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.5-94.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "python-tools",
"purl": "pkg:rpm/tuxcare/python-tools?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791486224.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.5-94.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "tkinter",
"purl": "pkg:rpm/tuxcare/tkinter?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791486224.json"
}
}
],
"modified": "2026-10-26T09:43:42.791353186Z",
"provider": "osv",
"upstream": [
"CVE-2025-4330",
"CVE-2025-4435",
"CVE-2026-11940",
"CVE-2026-82049"
],
"references": [
"https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1791486224.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-11940",
"https://nvd.nist.gov/vuln/detail/CVE-2026-4786",
"https://nvd.nist.gov/vuln/detail/CVE-2026-82049"
]
},
"related_cves": [
{
"value": "CVE-2025-4330",
"evidence": "/upstream"
},
{
"value": "CVE-2025-4435",
"evidence": "/upstream"
},
{
"value": "CVE-2026-11940",
"evidence": "/upstream"
},
{
"value": "CVE-2026-82049",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 450096,
"published_at": "2026-10-19T14:29:35+00:00"
}