CVE-2021-22959 describes an HTTP Request Smuggling (HRS) vulnerability in llhttp versions prior to 2.1.4 and 6.0.6, where the parser incorrectly accepts requests with a space after the header name and before the colon. This flaw, rated Medium severity (CVSS 6.5), can lead to information disclosure and data integrity issues, affecting various Debian and Oracle products utilizing llhttp. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.1.4CPE matchmatch criteria | cpe:2.3:a:llhttp:llhttp:*:*:*:*:*:node.js:*:* | ||
>= 3.0.0, < 6.0.6CPE matchmatch criteria | cpe:2.3:a:llhttp:llhttp:*:*:*:*:*:node.js:*:* | ||
20.3.4CPE matchmatch criteria | cpe:2.3:a:oracle:graalvm:20.3.4:*:*:*:enterprise:*:*:* | ||
21.3.0CPE matchmatch criteria | cpe:2.3:a:oracle:graalvm:21.3.0:*:*:*:enterprise:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.