Technology · OWASP
OWASP Modsecurity vulnerabilities
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Junglewise Threat Intelligence has tracked 9 vulnerabilities in OWASP Modsecurity: 3 in the last 7 days and 6 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-73857, was published on 9 November 2026. 3 vulnerabilities in the last four weeks, up from none in the four before.
- Last 7 days
- 3
- Last 90 days
- 6
- Critical, all time
- 0
- Exploited in the wild
- 0
About OWASP Modsecurity
Open-source web application firewall module that detects and prevents attacks against web applications.
Latest OWASP Modsecurity vulnerabilities
- CVE-2026-73857: ModSecurity uninitialized pointer dereference in XML parsinghighCVSS 7.5EPSS 0.4%
- CVE-2026-61812: ModSecurity htmlEntityDecode rule bypass via incomplete entity handlinginfoEPSS 0.3%
- CVE-2026-104259: ModSecurity removeComments bypass via adjacent commentsmediumCVSS 5.4EPSS 0.2%
- CVE-2026-73856: ModSecurity response body inspection bypass with mixed-case Content-TypehighCVSS 8.6
- CVE-2026-104269: ModSecurity multipart parser filename precedence bypasshighCVSS 8.6
- CVE-2026-103932: ModSecurity @rxGlobal match-limit bypassmediumCVSS 5.8
- CVE-2026-52761: OWASP ModSecurity WAF rule bypass in utf8toUnicode transformationmediumCVSS 5.8
- CVE-2026-52747: OWASP ModSecurity WAF bypass via line break stripping in multipart parserhighCVSS 8.6
- CVE-2026-30923: OWASP libModSecurity3 denial of service in t:hexDecode transformationhighCVSS 7.5EPSS 0.4%
Most severe OWASP Modsecurity vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-73856: ModSecurity response body inspection bypass with mixed-case Content-TypehighCVSS 8.6
- CVE-2026-104269: ModSecurity multipart parser filename precedence bypasshighCVSS 8.6
- CVE-2026-52747: OWASP ModSecurity WAF bypass via line break stripping in multipart parserhighCVSS 8.6
- CVE-2026-30923: OWASP libModSecurity3 denial of service in t:hexDecode transformationhighCVSS 7.5EPSS 0.4%
- CVE-2026-73857: ModSecurity uninitialized pointer dereference in XML parsinghighCVSS 7.5EPSS 0.4%
- CVE-2026-103932: ModSecurity @rxGlobal match-limit bypassmediumCVSS 5.8
- CVE-2026-52761: OWASP ModSecurity WAF rule bypass in utf8toUnicode transformationmediumCVSS 5.8
- CVE-2026-104259: ModSecurity removeComments bypass via adjacent commentsmediumCVSS 5.4EPSS 0.2%
- CVE-2026-61812: ModSecurity htmlEntityDecode rule bypass via incomplete entity handlinginfoEPSS 0.3%
Vulnerabilities per week
3 vulnerabilities in the last four weeks, up from none in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 3 | 0 | |
| 9 Nov 2026 | 3 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many OWASP Modsecurity vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/modsecurity)<a href="https://junglewise.ai/threats/technologies/modsecurity"><img src="https://junglewise.ai/threats/technologies/modsecurity/badge.svg" alt="OWASP Modsecurity vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/modsecurity.json, and this page as text at https://junglewise.ai/threats/technologies/modsecurity.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "OWASP Modsecurity vulnerabilities", https://junglewise.ai/threats/technologies/modsecurity, 12 November 2026.