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TI-2026-82174 Aliases CVE-2026-118686GHSA-jv3j-8935-75r6

EspoCRM Unauthenticated Denial of Service via Password-Redaction Regex

Priority MEDIUM 44CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-1333.

Summary

EspoCRM before 9.3.11 and from 10.0.0 before 10.0.8 is affected by an inefficient regular expression flaw (CWE-1333). The password-redaction regular expression applied during API error handling consumes excessive CPU on long request bodies. An unauthenticated remote attacker can send a small number of large API requests concurrently to exhaust server workers, making EspoCRM slow or unavailable to legitimate users.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00347 28th percentileScored 2026-11-07
Fix Fixed espocrm (espocrm): 10.0.8, 9.3.11

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
espocrmespocrm10.0.0 to before 10.0.810.0.8Patch availableCNA
espocrmespocrmbefore 9.3.119.3.11Patch availableCNA
  • espocrm Vendorespocrm Affected 10.0.0 to before 10.0.8 Fixed in 10.0.8 Patch available CNA
  • espocrm Vendorespocrm Affected before 9.3.11 Fixed in 9.3.11 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:espocrm:espocrm:*:*:*:*:*:*:*:*——espocrm
  • cpe:2.3:a:espocrm:espocrm:*:*:*:*:*:*:*:* Versions — — ·espocrm

Remediation

Upgrade EspoCRM to version 9.3.11 or to version 10.0.8.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA espocrm (espocrm) Fixed in 10.0.8
  • Fix · CNA espocrm (espocrm) Fixed in 9.3.11

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-118686
  2. 2026-10-28 Alias added: GHSA-jv3j-8935-75r6
  3. 2026-10-30 Priority changed: MEDIUM → LOW
  4. 2026-11-03 CISA SSVC decision points changed
  5. 2026-11-03 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2020-19229 EspoCRM 5.7.0 < 5.9.0 - Two-Factor Authentication Bypass via Auth Token Reuse Between Accounts with Identical Passwords CVSS 4.0HIGH 8.6
  • TI-2026-26036 Path traversal in espocrm CVSS 3.1CRITICAL 9.1
  • TI-2025-32670 EspoCRM vulnerable to LDAP Injection through Improper Neutralization of Special Elements CVSS 3.1MEDIUM 6.5
  • TI-2026-26112 EspoCRM has Admin TemplateManager path traversal that allows arbitrary file read write and delete CVSS 3.1HIGH 7.2
  • TI-2025-23468 EspoCRM vulnerable to HTML Injection into phishing, which may lead to account takeover CVSS 4.0HIGH 7.0
  • TI-2026-26120 EspoCRM: Stored XSS via SVG attachment loading same-origin JavaScript CVSS 3.1MEDIUM 6.8
See all 64 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences