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CVE-2026-1502

MEDIUMCVSS 5.7/10EPSS 0.47%

Last modified

CVE-2026-1502 is a medium-severity vulnerability rated 5.7/10 on the CVSS scale. CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 4.0
5.7/10

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

EPSS Probability
0.47%

37.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Python Software FoundationCPython< 3.13.14; >= 3.14.0a1, < 3.14.5rc1; >= 3.15.0a1, < 3.15.0b1

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-1502?
CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.
How severe is CVE-2026-1502?
CVE-2026-1502 has a CVSS score of 5.7/10 (MEDIUM severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.
How do I fix CVE-2026-1502?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST