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CVE-2025-4516
Good to know:
Date: May 15, 2025
There is an issue in CPython when using "bytes.decode("unicode_escape", error="ignore|replace")". If you are not using the "unicode_escape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode() call in a try-except catching the DecodeError.
Severity Score
Related Resources (16)
Severity Score
Weakness Type (CWE)
Use After Free
CWE-416Top Fix
Upgrade Version
Upgrade to version https://github.com/python/cpython.git - v3.9.23;https://github.com/python/cpython.git - v3.10.18;https://github.com/python/cpython.git - v3.11.13;https://github.com/python/cpython.git - v3.12.11;https://github.com/python/cpython.git - v3.13.4;https://github.com/python/cpython.git - v3.14.0b1
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | LOCAL |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | HIGH |