RHSA-2026:65505
Vulnerability from csaf_redhat - Published: 2026-09-08 14:52 - Updated: 2026-11-05 19:28Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
python3.14:
* python-unversioned-command-3.14.7-1.1.hum1 (noarch)
* python3-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3-debug-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3-devel-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3-idle-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3-libs-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3-test-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3-tkinter-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3.14-freethreading-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3.14-freethreading-debug-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3.14-freethreading-devel-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3.14-freethreading-idle-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3.14-freethreading-libs-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3.14-freethreading-test-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3.14-freethreading-tkinter-3.14.7-1.1.hum1 (aarch64, x86_64)
* python3.14-3.14.7-1.1.hum1.src (src)
Security Fix(es):
python3.14:
* CVE-2026-15310
* CVE-2026-15806
* CVE-2026-19672
* CVE-2026-17084
Terms of Use: 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.
A flaw was found in Python. When decompressing specially crafted zip files that use bzip, LZMA, or Zstandard compression methods, Python may pre-allocate memory based on an attacker-controlled size. This could lead to excessive memory consumption, potentially causing a Denial of Service (DoS) for the system.
6.5 (Medium)
Affected products
Fixed
31 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:python-unversioned-command-0:3.14.7-1.1.hum1@noarch@public-hummingbird-aarch64-rpms | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python-unversioned-command-0:3.14.7-1.1.hum1@noarch@public-hummingbird-x86_64-rpms | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-debug-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-debug-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-devel-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-devel-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-idle-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-idle-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-libs-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-libs-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-test-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-test-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-tkinter-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-tkinter-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-0:3.14.7-1.1.hum1@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-debug-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-debug-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-devel-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-devel-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-idle-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-idle-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-libs-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-libs-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-test-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-test-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-tkinter-0:3.14.7-1.1.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3.14-freethreading-tkinter-0:3.14.7-1.1.hum1@x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in Python. The `HTTPPasswordMgr` class in the `urllib.request` module did not correctly consider the URL scheme when matching stored credentials against a requested URL. This allowed credentials intended for an HTTPS (secure) connection to be sent over an unencrypted HTTP connection to the same host. A remote attacker, by redirecting or downgrading a client to plain HTTP, could exploit this to capture sensitive credentials in cleartext, leading to information disclosure.
5.3 (Medium)
Affected products
Fixed
31 products, the same list as for
CVE-2026-15310
Threats
Impact
Moderate
A flaw was found in the Python 'stringprep' module. This module incorrectly processed characters by using the latest Unicode codepoint attributes instead of the Unicode 3.2.0 standard specified in RFC 3454. This deviation can lead to mismatches when processing internationalized domain names (IDNA) using the IDNA 2003 standard. The consequence is a potential breakdown in interoperability for domain names containing characters with updated Unicode attributes since version 3.2.0.
6.5 (Medium)
Affected products
Fixed
31 products, the same list as for
CVE-2026-15310
Threats
Impact
Moderate
A flaw was found in the Python `tarfile` module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX (Portable Operating System Interface) platforms. This occurs when processing a specially crafted archive containing member names that use directory traversal sequences (e.g., `../`) to leave and then re-enter the target directory. While only empty directories are created outside the destination, this can lead to unintended file system modifications.
5.3 (Medium)
Affected products
Fixed
31 products, the same list as for
CVE-2026-15310
Threats
Impact
Moderate
A flaw was found in Python's `tarfile` module. This module's data and tar extraction filters are vulnerable to specially crafted archives containing a hard link to a symbolic link. An attacker could exploit this by providing a malicious archive. This could lead to unauthorized modification of file permissions or modification times for files outside the intended extraction directory, or the disclosure of sensitive file contents within the extracted tree.
7.1 (High)
Affected products
Fixed
31 products, the same list as for
CVE-2026-15310
Threats
Impact
Important
References
44 references
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"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.",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:65505"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "python: Python tarfile module: File modification and content disclosure via crafted archives"
}
]
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.