# OWASP Core Rule Set vulnerabilities

Source: https://junglewise.ai/threats/technologies/core-rule-set  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/core-rule-set.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in OWASP Core Rule Set: 2 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-62971, was published on 11 November 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 2
- Last 30 days: 2
- Last 90 days: 2
- All time: 3 (0 critical, 0 exploited in the wild)

## About OWASP Core Rule Set

A set of generic attack detection rules for use with ModSecurity or compatible web application firewalls.

## Latest OWASP Core Rule Set vulnerabilities

- [CVE-2026-62971: OWASP Core Rule Set XML attribute bypass in attack detection](https://junglewise.ai/threats/cve-2026-62971-the-owasp-core-rule-set-crs-is-a-set-of-generic-attack-detection) (high, CVSS 7.2, published 11 Nov 2026)
- [CVE-2026-61619: OWASP Core Rule Set ReDoS in regex detection rules](https://junglewise.ai/threats/cve-2026-61619-the-owasp-core-rule-set-crs-is-a-set-of-generic-attack-detection) (info, published 11 Nov 2026)
- [CVE-2026-33691: OWASP Core Rule Set bypass via filename whitespace padding](https://junglewise.ai/threats/cve-2026-33691-owasp-core-rule-set-bypass-via-filename-whitespace-padding) (medium, CVSS 6.8, published 2 Apr 2026)

## Most severe OWASP Core Rule Set vulnerabilities

- [CVE-2026-62971: OWASP Core Rule Set XML attribute bypass in attack detection](https://junglewise.ai/threats/cve-2026-62971-the-owasp-core-rule-set-crs-is-a-set-of-generic-attack-detection) (high, CVSS 7.2, published 11 Nov 2026)
- [CVE-2026-33691: OWASP Core Rule Set bypass via filename whitespace padding](https://junglewise.ai/threats/cve-2026-33691-owasp-core-rule-set-bypass-via-filename-whitespace-padding) (medium, CVSS 6.8, published 2 Apr 2026)
- [CVE-2026-61619: OWASP Core Rule Set ReDoS in regex detection rules](https://junglewise.ai/threats/cve-2026-61619-the-owasp-core-rule-set-crs-is-a-set-of-generic-attack-detection) (info, published 11 Nov 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 2 | 0 | 0 |

## Other OWASP technologies

- [OWASP Modsecurity](https://junglewise.ai/threats/technologies/modsecurity): 9 vulnerabilities
- [OWASP Coraza WAF](https://junglewise.ai/threats/technologies/owasp-coraza-waf): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "OWASP Core Rule Set vulnerabilities", https://junglewise.ai/threats/technologies/core-rule-set, 13 November 2026.