TI-2019-08507 Aliases CVE-2019-11390 GHSA-qw55-m3pm-vwhh

An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0.

LOW 27CWE-400Published 2019-04-21 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with set_error_handler# at the beginning and nested repetition operators. NOTE: the software maintainer disputes that this is a vulnerability because the issue cannot be exploited via ModSecurity

Why it matters now

EPSS 0.01625 76th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:modsecurity:owasp_modsecurity_core_rule_set::::::::	up to 3.1.0	Vulnerable	Modsecurity

cpe:2.3:a:modsecurity:owasp_modsecurity_core_rule_set:*:*:*:*:*:*:*:* Versions up to 3.1.0 Vulnerable ·Modsecurity

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-11390
2026-10-03 Alias added: GHSA-qw55-m3pm-vwhh

References

Exploit 1

https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1372

Advisory 1

https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1358

TI-2019-10109 An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) 3.0.2. CVSS 3.0HIGH 7.5
TI-2019-08508 An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. CVSS 3.1MEDIUM 5.3
TI-2019-08504 An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. CVSS 3.1MEDIUM 5.3
TI-2019-08506 An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. CVSS 3.1MEDIUM 5.3
TI-2019-08505 An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. CVSS 3.1MEDIUM 5.3

Sources

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