CVE-2023-42451— Mastodon Invalid Domain Name Normalization vulnerability
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I. Basic Information for CVE-2023-42451
Vulnerability Information
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Vulnerability Title
Mastodon Invalid Domain Name Normalization vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2, under certain circumstances, attackers can exploit a flaw in domain name normalization to spoof domains they do not own. Versions 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2 contain a patch for this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用不正确的解析名称或索引
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mastodon 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mastodon是一款基于ActivityPub的开源社交网络服务器。 Mastodon 3.5.14之前、4.0.10之前、4.1.8之前、4.2.0-rc2之前版本存在安全漏洞，该漏洞源于在某些情况下，攻击者可以利用域名规范化中的缺陷来欺骗不属于他们的域。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-42451
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- https://github.com/mastodon/mastodon/security/advisories/GHSA-v3xf-c9qf-j667x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-42451
Same Patch Batch · mastodon · 2023-09-19 · 3 CVEs total
| CVE-2023-42452 | 6.1 MEDIUM | Mastodon vulnerable to Stored XSS through the translation feature |
| CVE-2023-42450 | 5.4 MEDIUM | Mastodon Server-Side Request Forgery vulnerability |
IV. Related Vulnerabilities
Same product: mastodon
- CVE-2026-41259
Mastodon: Insufficient verification of email addresses - CVE-2026-33869
Mastodon has a denial of service for quote authorization - CVE-2026-33868
Mastodon has a GET-Based Open Redirect via '/web/%2F<domain> - CVE-2026-27477
Mastodon has SSRF via unvalidated FASP Provider base_url - CVE-2026-27468
Mastodon may allow unconfirmed FASP to make subscriptions
Same vendor: mastodon
- CVE-2026-41259
Mastodon: Insufficient verification of email addresses - CVE-2026-33869
Mastodon has a denial of service for quote authorization - CVE-2026-33868
Mastodon has a GET-Based Open Redirect via '/web/%2F<domain> - CVE-2026-27477
Mastodon has SSRF via unvalidated FASP Provider base_url - CVE-2026-27468
Mastodon may allow unconfirmed FASP to make subscriptions
Same weakness: CWE-706
- CVE-2026-40912
Traefik: StripPrefixRegex auth bypass via Path/RawPath desyn - CVE-2026-41402
OpenClaw < 2026.3.31 - Webhook Replay Cache Cross-Target mes - CVE-2026-42254
Hickory DNS 安全漏洞 - CVE-2026-41354
OpenClaw < 2026.4.2 - Insufficient Scope in Zalo Webhook Rep - CVE-2026-35358
uutils coreutils cp Semantic Loss and Potential Denial of Se
V. Comments for CVE-2023-42451
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