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oss-sec[oss-security][CVE-2026-3644] CPython Incomplete control character validation in http.cookies

First published (updated )
https://seclists.org/oss-sec/2026/q1/320

oss-sec[CVE-2026-4224] CPython Stack overflow parsing XML with deeply nested DTD content models

First published (updated )
https://seclists.org/oss-sec/2026/q1/319

oss-secFwd: [CVE-2026-2297] SourcelessFileLoader does not use io.open_code()

First published (updated )
https://seclists.org/oss-sec/2026/q1/260

oss-sec8 CVEs in Cpython announced this week

First published (updated )
https://seclists.org/oss-sec/2026/q1/111

oss-secCPython vulnerable to CVE-2025-13836, CVE-2025-13837, & CVE-2025-12084

First published (updated )
https://seclists.org/oss-sec/2025/q4/251
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Python PythonQuadratic complexity in node ID cache clearing

Risk 31
Severity
6.3
First published (updated )
CVE-2025-12084

pypi/cpythonThere is an issue in CPython when using `bytes.decode("unicode_escape", error="ignore|replace")`. If…

Risk 19
Severity
4
First published (updated )
REDHAT-BUG-2366509

pypi/cpythonUse-after-free in "unicode_escape" decoder with error handler

Risk 25
Severity
5.9
EPSS
0.01%
First published (updated )
CVE-2025-4516

pypi/cpythonCPython 3.9 and earlier doesn't disallow configuring an empty list ("[]") for SSLContext.set_npn_pro…

Risk 5
Severity
1
First published (updated )
REDHAT-BUG-2294682

pypi/cpythonBuffer overread when using an empty list with SSLContext.set_npn_protocols()

Risk 28
Severity
6.5
EPSS
0.04%
First published (updated )
CVE-2024-5642
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