CVE-2026-28514 is a critical authentication bypass vulnerability affecting Rocket.Chat versions prior to 7.8.6, 7.9.8, 7.10.7, 7.11.4, 7.12.4, 7.13.3, and 8.0.0. This flaw allows an attacker to log in as any user with a password set, using an arbitrary password, due to a missing 'await' keyword in a password validation function within the ddp-streamer microservice. Rated with a CVSS score of 9.3 (Critical), the vulnerability has a low attack complexity and no user interaction required, enabling full account takeover for known or guessable usernames. The potential impact includes high confidentiality, integrity, and availability compromise. While there is no confirmed active exploitation, the vulnerability has garnered significant community attention with 4 mentions, indicating awareness. There is currently no public exploit code available in Metasploit, Nuclei, or ExploitDB, and it is not listed in the CISA KEV catalog or Hot List.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 7.8.6CPE matchmatch criteria | cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* | ||
>= 7.9.0, < 7.9.8CPE matchmatch criteria | cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* | ||
>= 7.10.0, < 7.10.7CPE matchmatch criteria | cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* | ||
>= 7.11.0, < 7.11.4CPE matchmatch criteria | cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* | ||
>= 7.12.0, < 7.12.4CPE matchmatch criteria | cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.