CVE-2026-1502
MEDIUM EPSS 37.5%
Published Apr 10, 20262mo ago · Modified Jun 17, 20262w ago
5.7 CVSS 4.0
Published Apr 10, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction P
Scope X
Threat Intelligence
EPSS Exploit Probability
37.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-93
References 8
- openwall.com http://www.openwall.com/lists/oss-security/2026/04/11/4
- github.com https://github.com/python/cpython/commit/05ed7ce7ae9e17c23a04085b2539fe6d6d3cef69
- github.com https://github.com/python/cpython/commit/9e071c9b28c17f347f81b388a003d4eeb3c7a8dd
- github.com https://github.com/python/cpython/commit/b1cf9016335cb637c5a425032e8274a224f4b2ed
- github.com https://github.com/python/cpython/commit/c00c386faa579ad71196d33408644478488e43ec
- github.com https://github.com/python/cpython/issues/146211
- github.com https://github.com/python/cpython/pull/146212
- mail.python.org https://mail.python.org/archives/list/security-announce@python.org/thread/2IVPAEQWUJBCTQZEJEVTYCIKSMQPGRZ3/
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.