RHSA-2026:8824
Vulnerability from csaf_redhat - Published: 2026-04-17 19:24 - Updated: 2026-04-20 07:06Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
python3.12:
* python3.12-3.12.13-3.hum1 (aarch64, x86_64)
* python3.12-debug-3.12.13-3.hum1 (aarch64, x86_64)
* python3.12-devel-3.12.13-3.hum1 (aarch64, x86_64)
* python3.12-idle-3.12.13-3.hum1 (aarch64, x86_64)
* python3.12-libs-3.12.13-3.hum1 (aarch64, x86_64)
* python3.12-test-3.12.13-3.hum1 (aarch64, x86_64)
* python3.12-tkinter-3.12.13-3.hum1 (aarch64, x86_64)
* python3.12-3.12.13-3.hum1.src (src)
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 vulnerability in Python’s os.path.expandvars() function that can cause performance degradation. When processing specially crafted, user-controlled input with nested environment variable patterns, the function exhibits quadratic time complexity, potentially leading to excessive CPU usage and denial of service (DoS) conditions. No code execution or data exposure occurs, so the impact is limited to performance slowdown.
4.0 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.
A zip file handling flaw has been discovered in the python standard library `zipfile` module. The 'zipfile' module would not check the validity of the ZIP64 End of Central Directory (EOCD) Locator record offset value would not be used to locate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be assumed to be the previous record in the ZIP archive. This could be abused to create ZIP archives that are handled differently by the 'zipfile' module compared to other ZIP implementations.
4.3 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Missing character filtering has been discovered in Python. When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized.
4.5 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
A flaw was found in cpython. This vulnerability allows impacted availability via a quadratic algorithm in `xml.dom.minidom` methods, such as `appendChild()`, when building excessively nested documents due to a dependency on `_clear_id_cache()`
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
A flaw was found in the http.client module in the Python standard library. When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This issue allows a malicious server to cause the client to read large amounts of data into memory, potentially causing memory allocations errors, swapping, out-of-memory conditions or even system freezes.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
Since this vulnerability is triggered when no read amount is specified and the client defaults to using the potentially malicious Content-Length header, developers can mitigate this issue in their code by always imposing an explicit, safe limit on data reads.
Applications using the http.client.HTTPResponse.read function directly can ensure that read operations specify a byte limit:
~~~
...
max_safe_read = 10 * 1024 * 1024
data = response.read(max_safe_read)
...
~~~
A flaw was found in the plistlib module in the Python standard library. The amount of data to read from a Plist file is specified in the file itself. This issue allows a specially crafted Plist file to cause an application to allocate a large amount of memory, potentially resulting in allocations errors, swapping, out-of-memory conditions or even system freezes.
5.9 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Missing newline filtering has been discovered in Python. User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.
4.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Missing newline filtering has been discovered in Python. User-controlled header names and values containing newlines can allow injecting HTTP headers.
4.5 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
A flaw was found in the email module in the Python standard library. When serializing an email message, the BytesGenerator class fails to properly quote newline characters for email headers. This issue is exploitable when the LiteralHeader class is used as it does not respect email folding rules, allowing an attacker to inject email headers and potentially modify message recipients or the email body, and spoof sender information.
7.1 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
To mitigate this issue, applications accepting user-supplied data for email headers should sanitize the input by stripping or rejecting any strings containing carriage return or line feed characters, '\r' or '\n', respectively, preventing malicious sequences that could lead to header manipulation.
A flaw was found in Python. A malicious Python process could exploit the "profiling.sampling" module and "asyncio introspection capabilities" to read and write memory addresses within a privileged process. This vulnerability occurs when the privileged process connects to the malicious process via its remote debugging feature, potentially leading to information disclosure and arbitrary code execution. Successful exploitation requires repeated connections, which may cause instability in the connecting process.
6.0 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:8824
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References
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"notes": [
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"category": "description",
"text": "A vulnerability in Python\u2019s os.path.expandvars() function that can cause performance degradation. When processing specially crafted, user-controlled input with nested environment variable patterns, the function exhibits quadratic time complexity, potentially leading to excessive CPU usage and denial of service (DoS) conditions. No code execution or data exposure occurs, so the impact is limited to performance slowdown.",
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"text": "python: Quadratic complexity in os.path.expandvars() with user-controlled template",
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"baseScore": 4.0,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
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"title": "python: Quadratic complexity in os.path.expandvars() with user-controlled template"
},
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"name": "Improper Handling of Length Parameter Inconsistency"
},
"discovery_date": "2025-10-07T19:01:23.599055+00:00",
"ids": [
{
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"notes": [
{
"category": "description",
"text": "A zip file handling flaw has been discovered in the python standard library `zipfile` module. The \u0027zipfile\u0027 module would not check the validity of the ZIP64 End of Central Directory (EOCD) Locator record offset value would not be used to locate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be assumed to be the previous record in the ZIP archive. This could be abused to create ZIP archives that are handled differently by the \u0027zipfile\u0027 module compared to other ZIP implementations.",
"title": "Vulnerability description"
},
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"text": "cpython: python: Python zipfile End of Central Directory (EOCD) Locator record offset not checked",
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"title": "CVSS score applicability"
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"scores": [
{
"cvss_v3": {
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"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"version": "3.1"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "cpython: python: Python zipfile End of Central Directory (EOCD) Locator record offset not checked"
},
{
"cve": "CVE-2025-11468",
"cwe": {
"id": "CWE-140",
"name": "Improper Neutralization of Delimiters"
},
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
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}
],
"notes": [
{
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"text": "Missing character filtering has been discovered in Python. When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "cpython: Missing character filtering in Python",
"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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{
"category": "external",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11468"
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{
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"summary": "https://github.com/python/cpython/issues/143935",
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"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/FELSEOLBI2QR6YLG6Q7VYF7FWSGQTKLI/"
}
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{
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],
"scores": [
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"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
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}
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}
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"title": "cpython: Missing character filtering in Python"
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"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2025-12-03T19:01:03.489250+00:00",
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"title": "Vulnerability description"
},
{
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"text": "cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated Important for Red Hat products as it can lead to a denial of service. The flaw exists in the `xml.dom.minidom` module of cpython, where a quadratic algorithm in methods like `appendChild()` can be triggered when processing excessively nested XML documents. When successfully exploited this may impact the availability of applications utilizing this functionality across affected Red Hat products.",
"title": "Statement"
},
{
"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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"category": "external",
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{
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12084"
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{
"category": "external",
"summary": "https://github.com/python/cpython/issues/142145",
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{
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"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
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"Red Hat Hardened Images:python3-12-main@src",
"Red Hat Hardened Images:python3-12-main@x86_64"
]
}
],
"threats": [
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"category": "impact",
"details": "Moderate"
}
],
"title": "cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service"
},
{
"cve": "CVE-2025-13836",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2025-12-01T19:01:03.091899+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2418078"
}
],
"notes": [
{
"category": "description",
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "cpython: Excessive read buffering DoS in http.client",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue can only be exploited by Python applications using the http.client.HTTPResponse.read function without the amount parameter, which specifies the read size in bytes. Note that Python libraries may use this function internally and make applications vulnerable. Additionally, vulnerable Python applications must connect to a malicious or compromised server that replies with a very large or crafted Content-Length header to trigger this issue, limiting the exposure of this vulnerability.",
"title": "Statement"
},
{
"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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],
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},
{
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"summary": "RHBZ#2418078",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2418078"
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{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2025-13836"
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13836"
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{
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"summary": "https://github.com/python/cpython/issues/119451",
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"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:8824"
},
{
"category": "workaround",
"details": "Since this vulnerability is triggered when no read amount is specified and the client defaults to using the potentially malicious Content-Length header, developers can mitigate this issue in their code by always imposing an explicit, safe limit on data reads.\n\nApplications using the http.client.HTTPResponse.read function directly can ensure that read operations specify a byte limit:\n\n~~~\n...\nmax_safe_read = 10 * 1024 * 1024\ndata = response.read(max_safe_read)\n...\n~~~",
"product_ids": [
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"scores": [
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
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"threats": [
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"details": "Moderate"
}
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"title": "cpython: Excessive read buffering DoS in http.client"
},
{
"cve": "CVE-2025-13837",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2025-12-01T19:01:32.492656+00:00",
"ids": [
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"system_name": "Red Hat Bugzilla ID",
"text": "2418084"
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"notes": [
{
"category": "description",
"text": "A flaw was found in the plistlib module in the Python standard library. The amount of data to read from a Plist file is specified in the file itself. This issue allows a specially crafted Plist file to cause an application to allocate a large amount of memory, potentially resulting in allocations errors, swapping, out-of-memory conditions or even system freezes.",
"title": "Vulnerability description"
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"text": "cpython: Out-of-memory when loading Plist",
"title": "Vulnerability summary"
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{
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"title": "Statement"
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{
"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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"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
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}
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"threats": [
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"details": "Moderate"
}
],
"title": "cpython: Out-of-memory when loading Plist"
},
{
"cve": "CVE-2025-15282",
"cwe": {
"id": "CWE-93",
"name": "Improper Neutralization of CRLF Sequences (\u0027CRLF Injection\u0027)"
},
"discovery_date": "2026-01-20T22:01:20.971828+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2431366"
}
],
"notes": [
{
"category": "description",
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"title": "Vulnerability description"
},
{
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"text": "cpython: Header injection via newlines in data URL mediatype in Python",
"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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{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2025-15282"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-15282",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15282"
},
{
"category": "external",
"summary": "https://github.com/python/cpython/issues/143925",
"url": "https://github.com/python/cpython/issues/143925"
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{
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"category": "external",
"summary": "https://mail.python.org/archives/list/security-announce@python.org/thread/X66HL7SISGJT33J53OHXMZT4DFLMHVKF/",
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],
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},
{
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],
"scores": [
{
"cvss_v3": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
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]
}
],
"threats": [
{
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"details": "Moderate"
}
],
"title": "cpython: Header injection via newlines in data URL mediatype in Python"
},
{
"cve": "CVE-2026-0865",
"cwe": {
"id": "CWE-74",
"name": "Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)"
},
"discovery_date": "2026-01-20T22:01:26.694713+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2431367"
}
],
"notes": [
{
"category": "description",
"text": "Missing newline filtering has been discovered in Python. User-controlled header names and values containing newlines can allow injecting HTTP headers.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "cpython: wsgiref.headers.Headers allows header newline injection in Python",
"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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},
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2431367"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-0865",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-0865",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0865"
},
{
"category": "external",
"summary": "https://github.com/python/cpython/issues/143916",
"url": "https://github.com/python/cpython/issues/143916"
},
{
"category": "external",
"summary": "https://github.com/python/cpython/pull/143917",
"url": "https://github.com/python/cpython/pull/143917"
},
{
"category": "external",
"summary": "https://mail.python.org/archives/list/security-announce@python.org/thread/BJ6QPHNSHJTS3A7CFV6IBMCAP2DWRVNT/",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/BJ6QPHNSHJTS3A7CFV6IBMCAP2DWRVNT/"
}
],
"release_date": "2026-01-20T21:26:15.274000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-04-17T19:24:04+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:python3-12-main@aarch64",
"Red Hat Hardened Images:python3-12-main@src",
"Red Hat Hardened Images:python3-12-main@x86_64"
],
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},
"url": "https://access.redhat.com/errata/RHSA-2026:8824"
},
{
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"scores": [
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
},
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"Red Hat Hardened Images:python3-12-main@src",
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "cpython: wsgiref.headers.Headers allows header newline injection in Python"
},
{
"cve": "CVE-2026-1299",
"cwe": {
"id": "CWE-93",
"name": "Improper Neutralization of CRLF Sequences (\u0027CRLF Injection\u0027)"
},
"discovery_date": "2026-01-23T17:02:57.343486+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2432437"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the email module in the Python standard library. When serializing an email message, the BytesGenerator class fails to properly quote newline characters for email headers. This issue is exploitable when the LiteralHeader class is used as it does not respect email folding rules, allowing an attacker to inject email headers and potentially modify message recipients or the email body, and spoof sender information.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "cpython: email header injection due to unquoted newlines",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue can only be exploitable by Python applications using the LiteralHeader class to write email headers, as it does not respect email folding rules. Additionally, this issue allows attackers to modify message recipients or the email body and spoof sender identity but it does not cause memory corruption or arbitrary code execution. Due to these reasons, this vulnerability has been rated with a moderate severity.",
"title": "Statement"
},
{
"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"
}
],
"product_status": {
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"Red Hat Hardened Images:python3-12-main@src",
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]
},
"references": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-1299"
},
{
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"summary": "RHBZ#2432437",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2432437"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-1299",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-1299"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-1299",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1299"
},
{
"category": "external",
"summary": "https://cve.org/CVERecord?id=CVE-2024-6923",
"url": "https://cve.org/CVERecord?id=CVE-2024-6923"
},
{
"category": "external",
"summary": "https://github.com/python/cpython/commit/052e55e7d44718fe46cbba0ca995cb8fcc359413",
"url": "https://github.com/python/cpython/commit/052e55e7d44718fe46cbba0ca995cb8fcc359413"
},
{
"category": "external",
"summary": "https://github.com/python/cpython/issues/144125",
"url": "https://github.com/python/cpython/issues/144125"
},
{
"category": "external",
"summary": "https://github.com/python/cpython/pull/144126",
"url": "https://github.com/python/cpython/pull/144126"
},
{
"category": "external",
"summary": "https://mail.python.org/archives/list/security-announce@python.org/thread/6ZZULGALJTITEAGEXLDJE2C6FORDXPBT/",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/6ZZULGALJTITEAGEXLDJE2C6FORDXPBT/"
}
],
"release_date": "2026-01-23T16:27:13.346000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-04-17T19:24:04+00:00",
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"Red Hat Hardened Images:python3-12-main@src",
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:8824"
},
{
"category": "workaround",
"details": "To mitigate this issue, applications accepting user-supplied data for email headers should sanitize the input by stripping or rejecting any strings containing carriage return or line feed characters, \u0027\\r\u0027 or \u0027\\n\u0027, respectively, preventing malicious sequences that could lead to header manipulation.",
"product_ids": [
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"Red Hat Hardened Images:python3-12-main@src",
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]
}
],
"scores": [
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
"version": "3.1"
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"title": "cpython: email header injection due to unquoted newlines"
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"name": "Untrusted Pointer Dereference"
},
"discovery_date": "2026-04-14T16:01:58.710183+00:00",
"ids": [
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{
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},
{
"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.",
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"title": "python: Python: Information disclosure and arbitrary code execution via remote debugging with a malicious process."
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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