# CVE-2026-72914

## Summary

- **CVE ID:** CVE-2026-72914
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-405, CWE-770
- **Published:** Aug 10, 2026
- **Last Modified:** Aug 11, 2026

## 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.

## Affected Products

- mastodon — mastodon (< 4.4.21)
- mastodon — mastodon (>= 4.5.0-beta.1, < 4.5.14)
- mastodon — mastodon (>= 4.6.0-beta.1, < 4.6.4)

## References

- [CNA](https://github.com/mastodon/mastodon/security/advisories/GHSA-7jvv-fhmg-wpfw)
- [CNA](https://github.com/mastodon/mastodon/commit/18c61f286f1f5718a8f517940ba384866ffa3892)
- [CNA](https://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedfb1074)
- [CNA](https://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d83373b)
- [CNA](https://github.com/mastodon/mastodon/commit/da47a1bd3cd07935d7ca55a1f4f1a76f7f167e0d)
- [CNA](https://github.com/mastodon/mastodon/releases/tag/v4.4.21)
- [CNA](https://github.com/mastodon/mastodon/releases/tag/v4.5.14)
- [CNA](https://github.com/mastodon/mastodon/releases/tag/v4.6.4)
- [CNA](https://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.45%
- **EPSS Percentile:** 38.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._