Is CVE-2026-118686 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-118686 being exploited in the wild.

How severe is CVE-2026-118686?

High severity, with a CVSS score of 7.5, published 28 October 2026.

Which products and versions are affected?

Espocrm 9.3.10 and below; 10.0.7 and below.

Is there a fix for CVE-2026-118686?

Yes: fixed in EspoCRM 9.3.11, 10.0.8. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-118686 attacked?

It is attacked over the network.

Am I affected by CVE-2026-118686?

Check whether you run Espocrm at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-118686: EspoCRM denial of service in password-redaction regex

CVE-2026-118686 · Severity: high · CVSS 7.5 · Published 2026-10-28

EspoCRM is a customer relationship management system used by businesses to manage sales, marketing, and customer interactions. A vulnerability in its API error handling allows unauthenticated attackers to send specially crafted requests that consume excessive server CPU, causing the system to become slow or unavailable to legitimate users. An attacker needs only to send a small number of large requests concurrently to exhaust server resources and trigger a denial of service.

Technologies: Espocrm. Vendors: Espocrm.

Quick answers

Is CVE-2026-118686 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-118686 being exploited in the wild.
How severe is CVE-2026-118686?: High severity, with a CVSS score of 7.5, published 28 October 2026.
Which products and versions are affected?: Espocrm 9.3.10 and below; 10.0.7 and below.
Is there a fix for CVE-2026-118686?: Yes: fixed in EspoCRM 9.3.11, 10.0.8. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-118686 attacked?: It is attacked over the network.
Am I affected by CVE-2026-118686?: Check whether you run Espocrm at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: EspoCRM 9.3.11, 10.0.8

Technical details

The password-redaction regular expression applied during API error handling in EspoCRM exhibits ReDoS (Regular Expression Denial of Service) behavior when processing long request bodies, consuming excessive CPU cycles. An unauthenticated network attacker can send concurrent large API requests to exhaust available server workers. The vulnerability affects EspoCRM versions 9.3.10 and below, and 10.0.7 and below, with patches available in 9.3.11 and 10.0.8 respectively.

Affected products

EspoCRM EspoCRM 9.3.10 and below; 10.0.7 and below

Timeline

2026-10-28: disclosed
2026-10-13: advisory: GitHub Security Advisory GHSA-6pjq-v35w-jmjh published

References

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