CVE-2026-72914— Mastodon: Exhausting data by an unauthenticated request to the admin retention API
Possible ATT&CK Techniques 1AI
T1499.002 · Service Exhaustion FloodGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-72914
Vulnerability Information
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Vulnerability Title
Mastodon: Exhausting data by an unauthenticated request to the admin retention API
Source: CVE Program / CVE List V5
Vulnerability Description
Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.4.21, 4.5.14, 4.6.4, and 4.7.0-beta.1, the administrative statistics endpoints handled by Api::V1::Admin::MeasuresController and Api::V1::Admin::RetentionController checked authorization only after beginning expensive calculations. Anonymous callers could submit keys, start_at, and end_at parameters that caused long-running SQL queries in Admin::Metrics::Measure, Admin::Metrics::Retention, and Admin::Metrics::Dimension::BaseDimension, allowing repeated requests to exhaust server resources. This issue is fixed in versions 4.4.21, 4.5.14, 4.6.4, and 4.7.0-beta.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不对称的资源消耗(放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
Mastodon 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mastodon是Mastodon组织的一款去中心化社交网络服务器软件。 Mastodon 4.4.21之前版本、4.5.14之前版本、4.6.4之前版本和4.7.0-beta.1之前版本存在资源管理错误漏洞，该漏洞源于管理统计端点在开始高开销计算后才进行授权检查，可能导致匿名攻击者提交keys、start_at和end_at参数触发长时间SQL查询，并通过重复请求耗尽服务器资源。
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-2026-72914
| # | POC Description | Source Link | Shenlong Link |
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Patches & Fixes for CVE-2026-72914 (4)
Vendor Advisories for CVE-2026-72914 (1)
Vendor Pages for CVE-2026-72914 (3)
Same Patch Batch · mastodon · 2026-08-10 · 3 CVEs total
| CVE-2026-72915 | 7.5 HIGH | Mastodon: Personally-identifying information disclosure due to incorrect access control va |
| CVE-2026-72916 | 6.3 MEDIUM | Mastodon: SSRF Protection Bypass via IPv4-compatible IPv6 Addresses |
IV. Related Vulnerabilities
Same product: mastodon
- CVE-2026-72916
Mastodon: SSRF Protection Bypass via IPv4-compatible IPv6 Ad - CVE-2026-72915
Mastodon: Personally-identifying information disclosure due - CVE-2026-50129
Mastodon: Persistent anonymous DoS via unhandled NoMethodErr - CVE-2026-50128
Mastodon: Spoofing of attribution domains - CVE-2026-48028
Mastodon: Removal of integrity-protected JSON entries from s
Same vendor: mastodon
- CVE-2026-72916
Mastodon: SSRF Protection Bypass via IPv4-compatible IPv6 Ad - CVE-2026-72915
Mastodon: Personally-identifying information disclosure due - CVE-2026-50129
Mastodon: Persistent anonymous DoS via unhandled NoMethodErr - CVE-2026-50128
Mastodon: Spoofing of attribution domains - CVE-2026-48028
Mastodon: Removal of integrity-protected JSON entries from s
Same weakness: CWE-405
- CVE-2026-54224
Denial of Service in UBB.threads - CVE-2026-47774
Envoy vulnerable to HTTP/2 memory exhaustion via cookie head - CVE-2026-8594
Text::LineFold versions through 2019.001 for Perl duplicate - CVE-2026-45557
Technitium DNS Server excessive DNSSEC requests - CVE-2026-35665
OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook
V. Comments for CVE-2026-72914
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