CVE-2026-31950 identifies an improper authorization vulnerability in LibreChat versions 0.8.2-rc2 through 0.8.2-rc3. This flaw allows any authenticated user to subscribe to and read another user's real-time chat content, including messages and AI responses, by guessing or obtaining a valid stream ID. Rated Medium (CVSS 5.3), the vulnerability has a network attack vector, requires low privileges, but has high attack complexity, leading to a high confidentiality impact. There is currently no evidence of active exploitation, no public exploit code available, and minimal community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
0.8.2CPE matchmatch criteria | cpe:2.3:a:librechat:librechat:0.8.2:rc2:*:*:*:*:*:* | ||
0.8.2CPE matchmatch criteria | cpe:2.3:a:librechat:librechat:0.8.2:rc3:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.