CVE-2020-36202
CVE-2020-36202 is a medium-severity vulnerability in Rust-lang Async-h1 with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (53rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Rust-lang Async-h1
- Published:
- Last modified:
Description
An issue was discovered in the async-h1 crate before 2.3.0 for Rust. Request smuggling can occur when used behind a reverse proxy.
Frequently asked questions
- What is CVE-2020-36202?
- An issue was discovered in the async-h1 crate before 2.3.0 for Rust. Request smuggling can occur when used behind a reverse proxy.
- How severe is CVE-2020-36202?
- CVE-2020-36202 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-36202 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-36202?
- CVE-2020-36202 affects Rust-lang Async-h1. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-36202?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-36202 published?
- CVE-2020-36202 was published on 2021-01-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:rust-lang:async-h1:*:*:*:*:*:rust:*:*
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