CVE-2026-23962
Mastodon vulnerable to Denial of Service from a single post (client/server)
7.5
HIGH
CVSS 3.1
EPSS 0.49%
描述
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.
如何修補 CVE-2026-23962
要修補 CVE-2026-23962,請將受影響套件升級到下列已修補版本。
- —升級至 4.3.18 或更新版本
CVE-2026-23962 正在被利用嗎?
低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 4.3.18, >= 4.4.0, < 4.4.12, >= 4.5.0, < 4.5.5
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |