OESA-2026-1901 (CVE-2025-13462)
Vulnerability from osv_openeuler – Published: 2026-04-11 11:10 – Updated: 2026-08-06 11:10 – Source websitePython combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces.
Security Fix(es):
The "tarfile" module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.(CVE-2025-13462)
DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model.
pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.(CVE-2026-3479)
The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().(CVE-2026-3644)
When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs.(CVE-2026-4224)
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"python3-3.11.6-27.oe2403sp2.aarch64.rpm",
"python3-debug-3.11.6-27.oe2403sp2.aarch64.rpm",
"python3-debuginfo-3.11.6-27.oe2403sp2.aarch64.rpm",
"python3-debugsource-3.11.6-27.oe2403sp2.aarch64.rpm",
"python3-devel-3.11.6-27.oe2403sp2.aarch64.rpm",
"python3-tkinter-3.11.6-27.oe2403sp2.aarch64.rpm",
"python3-unversioned-command-3.11.6-27.oe2403sp2.aarch64.rpm"
],
"noarch": [
"python3-help-3.11.6-27.oe2403sp2.noarch.rpm"
],
"src": [
"python3-3.11.6-27.oe2403sp2.src.rpm"
],
"x86_64": [
"python3-3.11.6-27.oe2403sp2.x86_64.rpm",
"python3-debug-3.11.6-27.oe2403sp2.x86_64.rpm",
"python3-debuginfo-3.11.6-27.oe2403sp2.x86_64.rpm",
"python3-debugsource-3.11.6-27.oe2403sp2.x86_64.rpm",
"python3-devel-3.11.6-27.oe2403sp2.x86_64.rpm",
"python3-tkinter-3.11.6-27.oe2403sp2.x86_64.rpm",
"python3-unversioned-command-3.11.6-27.oe2403sp2.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:24.03-LTS-SP2",
"name": "python3",
"purl": "pkg:rpm/openEuler/python3\u0026distro=openEuler-24.03-LTS-SP2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.11.6-27.oe2403sp2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"details": "Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces.\r\n\r\nSecurity Fix(es):\n\nThe \u0026quot;tarfile\u0026quot; module would still apply normalization of AREGTYPE (\\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.(CVE-2025-13462)\n\nDISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model.\n\npkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.(CVE-2026-3479)\n\nThe fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().(CVE-2026-3644)\n\nWhen an Expat parser with a registered ElementDeclHandler parses an inline\ndocument type definition containing a deeply nested content model a C stack\noverflow occurs.(CVE-2026-4224)",
"id": "OESA-2026-1901",
"modified": "2026-08-06T11:10:55Z",
"published": "2026-04-11T11:10:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1901"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13462"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3479"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3644"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4224"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
],
"summary": "python3 security update",
"upstream": [
"CVE-2025-13462",
"CVE-2026-3479",
"CVE-2026-3644",
"CVE-2026-4224"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
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