Description
Mastodon is a free, open-source social network server based on ActivityPub. Mastodon versions before v4.3.18, v4.4.12, and v4.5.5 do not have a limit on the maximum number of poll options for remote posts, allowing attackers to create polls with a very large amount of options, greatly increasing resource consumption. Depending on the number of poll options, an attacker can cause disproportionate resource usage in both Mastodon servers and clients, potentially causing Denial of Service either server-side or client-side. Mastodon versions v4.5.5, v4.4.12, v4.3.18 are patched.
INFO
Published Date :
2026-01-22T01:51:37.430Z
Last Modified :
2026-01-22T21:35:41.343Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-23962 vulnerability.
| Vendors | Products |
|---|---|
| Joinmastodon |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23962.
