CVE - CVE-2025-4516

CVE-ID
CVE-2025-4516	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/python/cpython/commit/69b4387f78f413e8c47572a85b3478c47eba8142 URL:https://github.com/python/cpython/commit/69b4387f78f413e8c47572a85b3478c47eba8142 MISC:https://github.com/python/cpython/commit/9f69a58623bd01349a18ba0c7a9cb1dad6a51e8e URL:https://github.com/python/cpython/commit/9f69a58623bd01349a18ba0c7a9cb1dad6a51e8e MISC:https://github.com/python/cpython/issues/133767 URL:https://github.com/python/cpython/issues/133767 MISC:https://github.com/python/cpython/pull/129648 URL:https://github.com/python/cpython/pull/129648 MISC:https://mail.python.org/archives/list/security-announce@python.org/thread/L75IPBBTSCYEF56I2M4KIW353BB3AY74/ URL:https://mail.python.org/archives/list/security-announce@python.org/thread/L75IPBBTSCYEF56I2M4KIW353BB3AY74/
Assigning CNA
Python Software Foundation
Date Record Created
20250509	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250509)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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