CVE-2018-21018 describes a critical vulnerability in Mastodon versions prior to 2.6.3, stemming from improper handling of timeouts for incompletely established sessions. With a CVSS score of 9.8 (CRITICAL), this network-exploitable flaw requires no user interaction or privileges, allowing for high impact to confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.6.3CPE matchmatch criteria | cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.