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cpe:2.3:a:python-hyper:h2:*:*:*:*:*:*:*:*
part: a version: * update: *
| Vendor | Python Hyper (8ae8a819-bf0f-588d-a1c0-e13104b65a6e) |
|---|---|
| Product | H2 (22f04dda-d09d-5853-b6e7-cb3dd632365c) |
| Edition | * |
| Language | * |
| Software edition | * |
| Target software | * |
| Target hardware | * |
| Other | * |
| Notes | Imported from gcve-enriched-dumps CVE data |
PURL mappings
| PURL | Source | Last updated |
|---|---|---|
pkg:github/python-hyper/h2 |
purl2cpe | 2026-09-09 08:33:47.754885 |
Vulnerability references
| Identifier | cpeApplicability | Submitted | db.gcve.eu details | Rationale |
|---|---|---|---|---|
CVE:CVE-2026-71554 |
vulnerable | 2026-09-16 04:32:59.837166 |
h2: Duplicate Host header could facilitate request smuggling
MEDIUM (5.3)
h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request carries two Host header lines, providing a request smuggling primitive. This issue is fixed in version 4.4.1.
Published: 2026-08-06T21:46:43.057Z
Updated: 2026-08-08T02:49:30.505Z |
Imported from gcve-enriched-dumps CVE data |
CVE:CVE-2025-57804 |
vulnerable | 2026-06-08 07:33:16.155707 |
h2 allows HTTP Request Smuggling due to illegal characters in headers
h2 is a pure-Python implementation of a HTTP/2 protocol stack. Prior to version 4.3.0, an HTTP/2 request splitting vulnerability allows attackers to perform request smuggling attacks by injecting CRLF characters into headers. This occurs when servers downgrade HTTP/2 requests to HTTP/1.1 without properly validating header names/values, enabling attackers to manipulate request boundaries and bypass security controls. This issue has been patched in version 4.3.0.
Published: 2025-08-25T21:04:52.642Z
Updated: 2025-11-03T18:13:44.839Z |
Imported from gcve-enriched-dumps CVE data |
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