Description
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 $a# 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
Published: 2019-04-21
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

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Tracking

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Advisories

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History

Sat, 21 Feb 2026 08:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Modsecurity Owasp Modsecurity Core Rule Set
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T22:55:39.343Z

Reserved: 2019-04-20T00:00:00.000Z

Link: CVE-2019-11391

cve-icon Vulnrichment

Updated: 2024-08-04T22:55:39.343Z

cve-icon NVD

Status : Modified

Published: 2019-04-21T02:29:00.487

Modified: 2024-11-21T04:21:00.807

Link: CVE-2019-11391

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses