CVE-2026-118686— EspoCRM before 9.3.11 and 10.0.8 Unauthenticated Denial of Service via Password-Redaction Regex

Quick assessment

Affected

espocrm espocrm

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 EspoCRM 9.3.11 之前版本以及 10.x 系列中 10.0.8 之前的版本中，存在一个拒绝服务（DoS）漏洞。该漏洞源于在 API 错误处理过程中用于密码脱敏的正则表达式，在处理较长的请求体时会消耗大量 CPU 资源。未认证的远程攻击者可以并发发送少量大型 API 请求，从而耗尽服务器工作进程，导致 EspoCRM 对合法用户响应变慢或完全不可用。

CVSS 7.5 · High Updated Oct 29, 2026

Possible ATT&CK Techniques 1 AI

T1499.003 · Application Exhaustion Flood

Affected Version Matrix 4

Vendor	Product	Version Range	Status
espocrm	espocrm	`10.0.0< 10.0.8`	affected
		`10.0.8`	unaffected
		`< 9.3.11`	affected
		`9.3.11`	unaffected

Get alerts for future matching vulnerabilities Log in to subscribe

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

EspoCRM before 9.3.11 and 10.0.8 Unauthenticated Denial of Service via Password-Redaction Regex

Source: CVE Program / CVE List V5

Vulnerability Description

EspoCRM before 9.3.11 and 10.x before 10.0.8 contains a denial of service vulnerability in which the password-redaction regular expression applied during API error handling consumes excessive CPU on long request bodies. Unauthenticated remote attackers can concurrently send a small number of large API requests to exhaust server workers, making EspoCRM slow or unavailable to legitimate users.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

CWE-1333

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
espocrm	espocrm	10.0.0 ~ 10.0.8	-
espocrm	espocrm	0 ~ 9.3.11	-

II. Public POCs for CVE-2026-118686

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-118686

请登录查看更多情报信息。

Other References for CVE-2026-118686 (2)

https://github.com/espocrm/espocrm/security/advisories/GHSA-6pjq-v35w-jmjh vendor-advisory
https://www.vulncheck.com/advisories/espocrm-before-9.3.11-and-10.0.8-unauthenticated-denial-of-service-via-password-redaction-regex third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-118686

IV. Related Vulnerabilities

Same product: espocrm

Same vendor: espocrm

Same weakness: CWE-1333