---
title: "CVE-2026-118686: EspoCRM - Denial of Service"
description: "EspoCRM < 9.3.11 and 10.x < 10.0.8 contains a denial of service caused by excessive CPU consumption in password-redaction regex during API error handling, letting unauthenticated remote attackers exhaust server resources, exploit requires sending large API requests."
url: https://panop.io/threat-heartbeat/CVE-2026-118686/
---

# CVE-2026-118686 EspoCRM - Denial of Service

EspoCRM < 9.3.11 and 10.x < 10.0.8 contains a denial of service caused by excessive CPU consumption in password-redaction regex during API error handling, letting unauthenticated remote attackers exhaust server resources, exploit requires sending large API requests.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-118686)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

28 October 2026

Updated

29 October 2026

Weakness

[CWE-1333](https://cwe.mitre.org/data/definitions/1333.html)

## Vendor fix

Upgrade to versions 9.3.11 or 10.0.8 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-118686](https://nvd.nist.gov/vuln/detail/CVE-2026-118686)
- [https://github.com/espocrm/espocrm/security/advisories/GHSA-6pjq-v35w-jmjh](https://github.com/espocrm/espocrm/security/advisories/GHSA-6pjq-v35w-jmjh)
- [https://www.vulncheck.com/advisories/espocrm-before-9.3.11-and-10.0.8-unauthenticated-denial-of-service-via-password-redaction-regex](https://www.vulncheck.com/advisories/espocrm-before-9.3.11-and-10.0.8-unauthenticated-denial-of-service-via-password-redaction-regex)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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