RHSA-2026:11324
Vulnerability from csaf_redhat - Published: 2026-04-28 06:40 - Updated: 2026-04-28 07:49A flaw was found in the `tarfile` module of cpython. This vulnerability allows a remote attacker to craft a malicious tar archive that, when processed, could be misinterpreted by the `tarfile` module. This misinterpretation occurs because the module incorrectly applies normalization of `AREGTYPE` blocks to `DIRTYPE` during the processing of multi-block members, such as `GNUTYPE_LONGNAME` or `GNUTYPE_LONGLINK`. The consequence is that the `tarfile` module may process the archive differently than intended, potentially leading to unexpected file system changes or data integrity issues.
CWE-237 - Improper Handling of Structural ElementsA flaw was found in Python's `pkgutil.get_data()` function, which is used to retrieve data from packages. This function did not properly validate the `resource` argument, allowing a local attacker to perform path traversal attacks. Path traversal enables an attacker to access files and directories stored outside the intended root directory, potentially leading to information disclosure or unintended file access.
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'){
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"text": "An update for Red Hat Hardened Images RPMs is now available.",
"title": "Topic"
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"text": "This update includes the following RPMs:\n\npython3.11:\n * python3.11-3.11.15-4.2.hum1 (aarch64, x86_64)\n * python3.11-debug-3.11.15-4.2.hum1 (aarch64, x86_64)\n * python3.11-devel-3.11.15-4.2.hum1 (aarch64, x86_64)\n * python3.11-idle-3.11.15-4.2.hum1 (aarch64, x86_64)\n * python3.11-libs-3.11.15-4.2.hum1 (aarch64, x86_64)\n * python3.11-test-3.11.15-4.2.hum1 (aarch64, x86_64)\n * python3.11-tkinter-3.11.15-4.2.hum1 (aarch64, x86_64)\n * python3.11-3.11.15-4.2.hum1.src (src)\n\nSecurity Fix(es):\n\npython3.11:\n * CVE-2025-13462\n * CVE-2026-3479",
"title": "Details"
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"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
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"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_11324.json"
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],
"title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
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"discovery_date": "2026-03-12T19:01:27.734807+00:00",
"ids": [
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"text": "2447082"
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"notes": [
{
"category": "description",
"text": "A flaw was found in the `tarfile` module of cpython. This vulnerability allows a remote attacker to craft a malicious tar archive that, when processed, could be misinterpreted by the `tarfile` module. This misinterpretation occurs because the module incorrectly applies normalization of `AREGTYPE` blocks to `DIRTYPE` during the processing of multi-block members, such as `GNUTYPE_LONGNAME` or `GNUTYPE_LONGLINK`. The consequence is that the `tarfile` module may process the archive differently than intended, potentially leading to unexpected file system changes or data integrity issues.",
"title": "Vulnerability description"
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"text": "cpython: cpython: `tarfile` module misinterprets crafted tar archives leading to data integrity issues",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"url": "https://www.cve.org/CVERecord?id=CVE-2025-13462"
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{
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13462"
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"summary": "https://github.com/python/cpython/issues/141707",
"url": "https://github.com/python/cpython/issues/141707"
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"summary": "https://mail.python.org/archives/list/security-announce@python.org/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/"
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"attackVector": "LOCAL",
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"baseScore": 2.5,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"threats": [
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"title": "cpython: cpython: `tarfile` module misinterprets crafted tar archives leading to data integrity issues"
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{
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"cwe": {
"id": "CWE-22",
"name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
},
"discovery_date": "2026-03-18T19:01:35.703411+00:00",
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"notes": [
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"title": "Vulnerability description"
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"text": "python: Python pkgutil.get_data(): Path Traversal via improper resource argument validation",
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"title": "python: Python pkgutil.get_data(): Path Traversal via improper resource argument validation"
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}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.