CVE-2021-41168 describes a denial-of-service (DoS) vulnerability in Snudown, a Reddit-specific fork of the Sundown Markdown parser. The flaw stems from a weak hash function in its reference table implementation, allowing attackers to generate hash collisions and cause slow retrieval times due to duplicate entries. This vulnerability carries a CVSS score of 6.5 (MEDIUM), indicating a network-based attack with low complexity that can lead to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.7.0CPE matchmatch criteria | cpe:2.3:a:reddit:snudown:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/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, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.