CVE-2026-1502

CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.

CVSS 4.0

5.7CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS

0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-26)

CWE

CWE-93

Published

2026-04-10

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://github.com/python/cpython/commit/05ed7ce7ae9e17c23a04085b2539fe6d6d3cef69
• https://github.com/python/cpython/commit/56b7100b04e44ea27989242b176beb8f016b2c53
• https://github.com/python/cpython/commit/58703ec1bdd1eb075e8b01a0c427683ce594dd3e
• https://github.com/python/cpython/commit/9e071c9b28c17f347f81b388a003d4eeb3c7a8dd
• https://github.com/python/cpython/commit/b1cf9016335cb637c5a425032e8274a224f4b2ed

Check your stackJSON