CVE-2019-5885 is a high-severity vulnerability affecting Matrix Synapse versions prior to 0.34.0.1, specifically when the macaroon_secret_key authentication parameter is not explicitly set. This flaw allows remote attackers to impersonate users due to the predictable derivation of secret keys and other secrets. The vulnerability has a CVSS score of 7.5, indicating a network-based attack with low complexity and high impact on integrity, but no impact on confidentiality or availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.34.0.1CPE matchmatch criteria | cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:* | ||
28CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* | ||
29CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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.