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10 vulnerabilities found for cpython by python_software_foundation
CVE-2024-12254 (GCVE-0-2024-12254)
Vulnerability from nvd – Published: 2024-12-06 15:19 – Updated: 2026-07-31 14:08
VLAI
EPSS
VEX
Title
Unbounded memory buffering in SelectorSocketTransport.writelines()
Summary
Starting in Python 3.12.0, the asyncio._SelectorSocketTransport.writelines()
method would not "pause" writing and signal to the Protocol to drain
the buffer to the wire once the write buffer reached the "high-water
mark". Because of this, Protocols would not periodically drain the write
buffer potentially leading to memory exhaustion.
This
vulnerability likely impacts a small number of users, you must be using
Python 3.12.0 or later, on macOS or Linux, using the asyncio module
with protocols, and using .writelines() method which had new
zero-copy-on-write behavior in Python 3.12.0 and later. If not all of
these factors are true then your usage of Python is unaffected.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-06 15:35 UTC
CWE
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.12.9
(python)
Affected: 3.13.0 , < 3.13.2 (python) Affected: 3.14.0a1 , < 3.14.0a3 (python) |
|
| python_software_foundation | cpython |
Affected:
3.12.0 , < 3.14.0a1
(python)
cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:* |
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CVE-2024-11168 (GCVE-0-2024-11168)
Vulnerability from nvd – Published: 2024-11-12 21:22 – Updated: 2025-11-03 21:51
VLAI
EPSS
VEX
Title
Improper validation of IPv6 and IPvFuture addresses
Summary
The urllib.parse.urlsplit() and urlparse() functions improperly validated bracketed hosts (`[]`), allowing hosts that weren't IPv6 or IPvFuture. This behavior was not conformant to RFC 3986 and potentially enabled SSRF if a URL is processed by more than one URL parser.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-13 15:09 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.9.21
(python)
Affected: 3.10.0 , < 3.10.16 (python) Affected: 3.11.0 , < 3.11.4 (python) Affected: 3.12.0a1 , < 3.12.0b1 (python) |
|
| python_software_foundation | cpython |
Affected:
0 , < 3.11.4
(custom)
Affected: 3.12.0a1 , < 3.12.0b1 (custom) cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:* |
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CVE-2024-8088 (GCVE-0-2024-8088)
Vulnerability from nvd – Published: 2024-08-22 18:45 – Updated: 2025-11-03 22:32
VLAI
EPSS
VEX
Title
Infinite loop when iterating over zip archive entry names from zipfile.Path
Summary
There is a HIGH severity vulnerability affecting the CPython "zipfile"
module affecting "zipfile.Path". Note that the more common API "zipfile.ZipFile" class is unaffected.
When iterating over names of entries in a zip archive (for example, methods
of "zipfile.Path" like "namelist()", "iterdir()", etc)
the process can be put into an infinite loop with a maliciously crafted
zip archive. This defect applies when reading only metadata or extracting
the contents of the zip archive. Programs that are not handling
user-controlled zip archives are not affected.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-23 17:18 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
22 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.8.20
(python)
Affected: 3.9.0 , < 3.9.20 (python) Affected: 3.10.0 , < 3.10.15 (python) Affected: 3.11.0 , < 3.11.10 (python) Affected: 3.12.0 , < 3.12.6 (python) Affected: 3.13.0a1 , < 3.13.0rc2 (python) |
|
| python_software_foundation | cpython |
Affected:
0 , ≤ 3.13.0
(custom)
cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:* |
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CVE-2024-0397 (GCVE-0-2024-0397)
Vulnerability from nvd – Published: 2024-06-17 15:09 – Updated: 2025-11-03 21:50
VLAI
EPSS
VEX
Title
Memory race condition in ssl.SSLContext certificate store methods
Summary
A defect was discovered in the Python “ssl” module where there is a memory
race condition with the ssl.SSLContext methods “cert_store_stats()” and
“get_ca_certs()”. The race condition can be triggered if the methods are
called at the same time as certificates are loaded into the SSLContext,
such as during the TLS handshake with a certificate directory configured.
This issue is fixed in CPython 3.10.14, 3.11.9, 3.12.3, and 3.13.0a5.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-20 15:52 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
12 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.8.20
(python)
Affected: 3.9.0 , < 3.9.20 (python) Affected: 3.10.0 , < 3.10.14 (python) Affected: 3.11.0 , < 3.11.9 (python) Affected: 3.12.0 , < 3.12.3 (python) Affected: 3.13.0a1 , < 3.13.0a5 (python) |
|
| python_software_foundation | cpython |
Affected:
0 , < 3.8.20
(python)
Affected: 3.9.0 , < 3.9.20 (python) Affected: 3.10.0 , < 3.10.14 (python) Affected: 3.11.0 , < 3.11.9 (python) Affected: 3.12.0 , < 3.12.3 (python) Affected: 3.13.0a1 , < 3.13.0a5 (python) cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:* |
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CVE-2023-6597 (GCVE-0-2023-6597)
Vulnerability from nvd – Published: 2024-03-19 15:44 – Updated: 2025-11-03 21:50
VLAI
EPSS
VEX
Summary
An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior.
The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-05 19:08 UTC
Assigner
References
14 references
Impacted products
2 products
| Vendor | Product | Version | |
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| Python Software Foundation | CPython |
Affected:
0 , < 3.8.19
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|
| python_software_foundation | cpython |
Affected:
0 , < 3.8.19
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CVE-2024-12254 (GCVE-0-2024-12254)
Vulnerability from cvelistv5 – Published: 2024-12-06 15:19 – Updated: 2026-07-31 14:08
VLAI
EPSS
VEX
Title
Unbounded memory buffering in SelectorSocketTransport.writelines()
Summary
Starting in Python 3.12.0, the asyncio._SelectorSocketTransport.writelines()
method would not "pause" writing and signal to the Protocol to drain
the buffer to the wire once the write buffer reached the "high-water
mark". Because of this, Protocols would not periodically drain the write
buffer potentially leading to memory exhaustion.
This
vulnerability likely impacts a small number of users, you must be using
Python 3.12.0 or later, on macOS or Linux, using the asyncio module
with protocols, and using .writelines() method which had new
zero-copy-on-write behavior in Python 3.12.0 and later. If not all of
these factors are true then your usage of Python is unaffected.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-06 15:35 UTC
CWE
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.12.9
(python)
Affected: 3.13.0 , < 3.13.2 (python) Affected: 3.14.0a1 , < 3.14.0a3 (python) |
|
| python_software_foundation | cpython |
Affected:
3.12.0 , < 3.14.0a1
(python)
cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:* |
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CVE-2024-11168 (GCVE-0-2024-11168)
Vulnerability from cvelistv5 – Published: 2024-11-12 21:22 – Updated: 2025-11-03 21:51
VLAI
EPSS
VEX
Title
Improper validation of IPv6 and IPvFuture addresses
Summary
The urllib.parse.urlsplit() and urlparse() functions improperly validated bracketed hosts (`[]`), allowing hosts that weren't IPv6 or IPvFuture. This behavior was not conformant to RFC 3986 and potentially enabled SSRF if a URL is processed by more than one URL parser.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-13 15:09 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.9.21
(python)
Affected: 3.10.0 , < 3.10.16 (python) Affected: 3.11.0 , < 3.11.4 (python) Affected: 3.12.0a1 , < 3.12.0b1 (python) |
|
| python_software_foundation | cpython |
Affected:
0 , < 3.11.4
(custom)
Affected: 3.12.0a1 , < 3.12.0b1 (custom) cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:* |
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CVE-2024-8088 (GCVE-0-2024-8088)
Vulnerability from cvelistv5 – Published: 2024-08-22 18:45 – Updated: 2025-11-03 22:32
VLAI
EPSS
VEX
Title
Infinite loop when iterating over zip archive entry names from zipfile.Path
Summary
There is a HIGH severity vulnerability affecting the CPython "zipfile"
module affecting "zipfile.Path". Note that the more common API "zipfile.ZipFile" class is unaffected.
When iterating over names of entries in a zip archive (for example, methods
of "zipfile.Path" like "namelist()", "iterdir()", etc)
the process can be put into an infinite loop with a maliciously crafted
zip archive. This defect applies when reading only metadata or extracting
the contents of the zip archive. Programs that are not handling
user-controlled zip archives are not affected.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-23 17:18 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
22 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.8.20
(python)
Affected: 3.9.0 , < 3.9.20 (python) Affected: 3.10.0 , < 3.10.15 (python) Affected: 3.11.0 , < 3.11.10 (python) Affected: 3.12.0 , < 3.12.6 (python) Affected: 3.13.0a1 , < 3.13.0rc2 (python) |
|
| python_software_foundation | cpython |
Affected:
0 , ≤ 3.13.0
(custom)
cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:* |
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CVE-2024-0397 (GCVE-0-2024-0397)
Vulnerability from cvelistv5 – Published: 2024-06-17 15:09 – Updated: 2025-11-03 21:50
VLAI
EPSS
VEX
Title
Memory race condition in ssl.SSLContext certificate store methods
Summary
A defect was discovered in the Python “ssl” module where there is a memory
race condition with the ssl.SSLContext methods “cert_store_stats()” and
“get_ca_certs()”. The race condition can be triggered if the methods are
called at the same time as certificates are loaded into the SSLContext,
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Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-20 15:52 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
12 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.8.20
(python)
Affected: 3.9.0 , < 3.9.20 (python) Affected: 3.10.0 , < 3.10.14 (python) Affected: 3.11.0 , < 3.11.9 (python) Affected: 3.12.0 , < 3.12.3 (python) Affected: 3.13.0a1 , < 3.13.0a5 (python) |
|
| python_software_foundation | cpython |
Affected:
0 , < 3.8.20
(python)
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CVE-2023-6597 (GCVE-0-2023-6597)
Vulnerability from cvelistv5 – Published: 2024-03-19 15:44 – Updated: 2025-11-03 21:50
VLAI
EPSS
VEX
Summary
An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior.
The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-05 19:08 UTC
Assigner
References
14 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.8.19
(python)
Affected: 3.9.0 , < 3.9.19 (python) Affected: 3.10.0 , < 3.10.14 (python) Affected: 3.11.0 , < 3.11.8 (python) Affected: 3.12.0 , < 3.12.1 (python) Affected: 3.13.0a1 , < 3.13.0a3 (python) |
|
| python_software_foundation | cpython |
Affected:
0 , < 3.8.19
(custom)
Affected: 3.9.0 , < 3.9.19 (custom) Affected: 3.10.0 , < 3.10.14 (custom) Affected: 3.11.0 , < 3.11.8 (custom) Affected: 3.12.0 , < 3.12.1 (custom) Affected: 3.13.0a1 , < 3.13.0a3 (custom) cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:* |
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