CVE-2020-35863
9.8
CRITICAL · CVSS 3.1 · EPSS 3% (pctl 87)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
An issue was discovered in the hyper crate before 0.12.34 for Rust. HTTP request smuggling can occur. Remote code execution can occur in certain situations with an HTTP server on the loopback interface.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.97% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-444 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-12-31 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| hyper | hyper |
References
→ the Explorer · watch your stack · NVD