What’s Vulnerable › Products

python-hyper h2 vulnerabilities

2 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 2 published in the last 12 months.

Check whether your python-hyper h2 version is affected

Latest python-hyper h2 vulnerabilities

• CVE-2026-71554 — h2: Duplicate Host header could facilitate request smuggling (CVSS 5.3)
• CVE-2025-57804 — h2 allows HTTP Request Smuggling due to illegal characters in headers (CVSS 6.9)