Read the docs
TI-2021-02593 Aliases CVE-2021-3649GHSA-964r-mpxx-74p7

Inefficient Regular Expression Complexity in chatwoot/chatwoot

Priority LOW 35CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-1333.

Summary

chatwoot is vulnerable to Inefficient Regular Expression Complexity

Why it matters now

EPSS 0.01222 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
chatwootchatwoot/chatwootup to 1.11.1—No fix listedCNA
  • chatwoot/chatwoot Vendorchatwoot Affected up to 1.11.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:chatwoot:chatwoot:*:*:*:*:*:*:*:*before 1.18.0Vulnerablechatwoot
  • cpe:2.3:a:chatwoot:chatwoot:*:*:*:*:*:*:*:* Versions before 1.18.0 Vulnerable ·chatwoot

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3649
  2. 2026-10-03 Alias added: GHSA-964r-mpxx-74p7

References

Exploit 1

Patch 1

  • TI-2022-03436 Improper Restriction of Excessive Authentication Attempts in chatwoot/chatwoot CVSS 3.1CRITICAL 9.8
  • TI-2023-01984 Cross-site Scripting (XSS) - DOM in chatwoot/chatwoot CVSS 3.1MEDIUM 6.1
  • TI-2025-11229 chatwoot Admin IframeLoader.vue cross site scripting CVSS 4.0MEDIUM 5.3
  • TI-2024-00591 Stored XSS in chatwoot/chatwoot CVSS 3.1MEDIUM 4.8
  • TI-2025-15587 Chatwoot has a Blind SQL-injection in Conversation and Contacts filters CVSS 3.1CRITICAL 9.1
  • TI-2021-02675 Server-Side Request Forgery (SSRF) in chatwoot/chatwoot CVSS 3.1HIGH 8.8
See all 16 →

Sources

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