CVE-2026-71554
2 advisories.
PyPI/h2 CVE-2026-71554: medium 5.3, EPSS 0.42%
h2: Duplicate Host header could facilitate request smuggling
Action: Upgrade h2 to 4.4.1 or later.
pip install h2==4.4.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 4.4.1 | - |
Fixed versions
| 4.4.1 |
Sources
- osv: GHSA-6hr6-w5qg-qmwg
- https://github.com/python-hyper/h2/security/advisories/GHSA-6hr6-w5qg-qmwg
- https://github.com/python-hyper/h2/commit/292a40829feefda98c8509dcdbbb4a57af9bd6a6
- https://github.com/python-hyper/h2
CVE-2026-71554 · published · modified · JSON
PyPI/h2 CVE-2026-71554: medium 5.3, EPSS 0.42%
h2: Duplicate Host header could facilitate request smuggling
Action: Upgrade h2 to 4.4.1 or later.
pip install h2==4.4.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 4.4.1 | - |
Fixed versions
| 4.4.1 |
Sources
- osv: PYSEC-2026-3628
- https://github.com/python-hyper/h2/security/advisories/GHSA-6hr6-w5qg-qmwg
- https://github.com/python-hyper/h2/commit/292a40829feefda98c8509dcdbbb4a57af9bd6a6
- https://github.com/python-hyper/h2
- https://pypi.org/project/h2
- https://github.com/advisories/GHSA-6hr6-w5qg-qmwg
- https://nvd.nist.gov/vuln/detail/CVE-2026-71554
CVE-2026-71554 · published · modified · JSON