CVE-2019-20880 describes a denial-of-service vulnerability in Mattermost Server versions prior to 5.8.0, 5.7.2, 5.6.5, and 4.10.7, specifically affecting the OpenGraph feature. This high-severity vulnerability (CVSS 7.5) allows unauthenticated attackers to cause memory exhaustion, leading to a denial of service. There is 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 |
|---|---|---|---|
< 4.10.7CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
>= 5.6.0, < 5.6.5CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
>= 5.7.0, < 5.7.2CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
5.8.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:5.8.0:rc1:*:*:*:*:*:* | ||
5.8.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:5.8.0:rc2:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Remediation records are not available for this CVE.