CVE-2021-38512
HighPublic PoC
Published: 10 August 2021
Published
10 August 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
0.0042
62.5th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-38512 is a high-severity HTTP Request/Response Smuggling (CWE-444) vulnerability in Actix Actix-Http. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 37.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-1635
Vulnerability details
An issue was discovered in the actix-http crate before 3.0.0-beta.9 for Rust. HTTP/1 request smuggling (aka HRS) can occur, potentially leading to credential disclosure.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
actix
actix-http
3.0.0 · ≤ 3.0.0
fedoraproject
fedora
34
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.