CVE-2026-1502mediumCWE-93

CVE-2026-1502: medium-severity vulnerability in Python Software Foundation CPython

HTTP client proxy tunnel headers not validated for CR/LF

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.7epss 0.6%
CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
Python Software Foundation · CPython
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