# CVE-2026-72914 — mastodon

> As of 2026-08-11, CVE-2026-72914 is a HIGH-severity vulnerability in mastodon, CVSS v3.1 7.5, EPSS 0.4% (37.3th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-72914 as of 2026-08-11; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-11

## What is CVE-2026-72914?

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.

The record classifies CVE-2026-72914 under weakness classes [CWE-405](https://cwe.mitre.org/data/definitions/405.html), [CWE-770](https://intel.threadlinqs.com/cwe/CWE-770). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 56 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 37.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-10, last modified 2026-08-11

## Is CVE-2026-72914 being exploited?

It currently carries a trending score of 39 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **mastodon**: mastodon

## How to fix CVE-2026-72914

No vendor patch reference has been recorded for CVE-2026-72914 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-72914

No threat campaign in the Threadlinqs corpus currently references CVE-2026-72914, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-08-12. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com](https://github.com/mastodon/mastodon/security/advisories/GHSA-7jvv-fhmg-wpfw)

**Other references**

- [github.com](https://github.com/mastodon/mastodon/commit/18c61f286f1f5718a8f517940ba384866ffa3892)
- [github.com (467c933459c7d0e5513475b9e4888afaedfb1074)](https://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedfb1074)
- [github.com (930aa9fee26bf9eaefe27826fa1061288d83373b)](https://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d83373b)
- [github.com (da47a1bd3cd07935d7ca55a1f4f1a76f7f167e0d)](https://github.com/mastodon/mastodon/commit/da47a1bd3cd07935d7ca55a1f4f1a76f7f167e0d)
- [github.com (v4.4)](https://github.com/mastodon/mastodon/releases/tag/v4.4.21)

_Showing 6 of 9 recorded references._

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-72914
Full detection coverage and IOCs for threats exploiting CVE-2026-72914 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp