High severity7.5NVD Advisory· Published Jan 21, 2020· Updated Jun 17, 2026
CVE-2019-19886
CVE-2019-19886
Description
Trustwave ModSecurity 3.0.0 through 3.0.3 allows an attacker to send crafted requests that may, when sent quickly in large volumes, lead to the server becoming slow or unresponsive (Denial of Service) because of a flaw in Transaction::addRequestHeader in transaction.cc.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*range: >=3.0.0,<=3.0.3
- (no CPE)range: 3.0.0-3.0.3
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- Trustwave/ModSecuritydescription
Patches
Vulnerability mechanics
References
4- www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/modsecurity-denial-of-service-details-cve-2019-19886/nvdVendor Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWVUC54OPU7ICFYIXXVGQ5DOTMR4Z6ZY/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JI3MNFRNUZD6RAJ5CPQZSUXQXDZ2K7IL/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7IIUNYIEZOWHRWWRVT3FR45MLE6HGDY/nvd
News mentions
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