# CVE-2025-11375: Consul's event endpoint is vulnerable to denial of service

> CVE-2025-11375: Consul's event endpoint is vulnerable to denial of service. CVSS 6.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-11375
Last updated: 2026-10-18T21:10:00Z

- Published: 2025-10-28 20:12 UTC · Updated: 2026-10-18 21:10 UTC · Assigner: HashiCorp
- CVSS: 6.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.43%, 36th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-770

## Description

Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack of maximum value on the Content Length header. This vulnerability, CVE-2025-11375, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12.

## Affected vendors and products

- HashiCorp: Consul
- HashiCorp: Consul Enterprise

## Tracked companies

- [HashiCorp](https://rewindex.com/company/hashicorp.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-11375)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-11375)
- [https://discuss.hashicorp.com/t/hcsec-2025-28-consuls-event-endpoint-is-vulnerable-to-denial-of-service/76723](https://discuss.hashicorp.com/t/hcsec-2025-28-consuls-event-endpoint-is-vulnerable-to-denial-of-service/76723)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-11375 · Markdown: https://rewindex.com/cve/CVE-2025-11375.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-11375 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:43.515Z