CVE-2021-43840 is a path traversal vulnerability affecting the message_bus Ruby gem, specifically versions prior to 3.3.7, when diagnostic features are enabled. This flaw allows an authenticated attacker to potentially disclose sensitive information from the host system. With a CVSS score of 6.5 (Medium), the vulnerability has a network attack vector and low attack complexity, leading to high confidentiality impact. There is currently no evidence of active exploitation, nor are public exploit codes or Metasploit modules available, and it has received minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.3.7CPE matchmatch criteria | cpe:2.3:a:discourse:message_bus:*:*:*:*:*:ruby:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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.