Owasp Modsecurity Core Rule Set
Vendor:
First CVE: Sep 3, 2018 · Active for 7 years
9
Total CVEs
More Total CVEs than 88% of tracked products
2.3
Avg CVEs / Year
Higher CVE frequency than 76% of tracked products
8.3
Avg CVSS
Higher Avg CVSS than 75% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Owasp Modsecurity Core Rule Set over time
Volume of CVEsAvg CVSS Base Score
First CVE
Sep 3, 2018
7 years ago
Most Recent CVE
Apr 2, 2026
117 days ago
CVE Severity & Scoring
Owasp Modsecurity Core Rule Set9 CVEs
11%
44%
44%
All CVEs353,240 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local0 (0.0%)
Network9 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low9 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None9 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None9 (100.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (9 CVEs).
9 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-21876MEDIUM The OWASP core rule set (CRS) is a set of generic attack detection rules for use with compatible web application firewalls. Prior to versions 4.22.0 and 3.3.8, the current rule 922 | Jan 8, 2026 | 5.3 | 43 | NO | YES |
CVE-2026-33691HIGH The OWASP core rule set (CRS) is a set of generic attack detection rules for use with compatible web application firewalls. Prior to versions 3.3.9 and 4.25.0, a bypass was identif | Apr 2, 2026 | 7.5 | 34 | NO | NO |
CVE-2022-39956CRITICAL The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character encoding scheme via the | Sep 20, 2022 | 9.8 | 31 | NO | NO |
CVE-2021-35368CRITICAL OWASP ModSecurity Core Rule Set 3.1.x before 3.1.2, 3.2.x before 3.2.1, and 3.3.x before 3.3.2 is affected by a Request Body Bypass via a trailing pathname. | Nov 5, 2021 | 9.8 | 31 | NO | NO |
CVE-2022-39955CRITICAL The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field that indicates multiple characte | Sep 20, 2022 | 9.8 | 30 | NO | NO |
CVE-2020-22669CRITICAL Modsecurity owasp-modsecurity-crs 3.2.0 (Paranoia level at PL1) has a SQL injection bypass vulnerability. Attackers can use the comment characters and variable assignments in the S | Sep 2, 2022 | 9.8 | 26 | NO | NO |
CVE-2018-16384HIGH A SQL injection bypass (aka PL1 bypass) exists in OWASP ModSecurity Core Rule Set (owasp-modsecurity-crs) through v3.1.0-rc3 via {`a`b} where a is a special function name (such as | Sep 3, 2018 | 7.5 | 25 | NO | NO |
CVE-2022-39958HIGH The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by repeatedly submitting an HTTP | Sep 20, 2022 | 7.5 | 19 | NO | NO |
CVE-2022-39957HIGH The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optional "charset" parameter in order | Sep 20, 2022 | 7.5 | 19 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (9 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
1 CVE
11.1% of CVEs· 86th percentile
Social Chatter
Signals from CVEs in this product scope (9 CVEs).
Media Mentions
Signals from CVEs in this product scope (9 CVEs).
Top CNAs Publishing CVEs For Owasp Modsecurity Core Rule Set
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 3.2.0 | 1 | 9.8 | 1.0% | 0 | 0 |
| 3.1.0 | 1 | 7.5 | 1.7% | 0 | 0 |