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TI-2024-00942 Aliases CVE-2024-1019GHSA-w56r-g989-xqw3

WAF bypass of the ModSecurity v3 release line

Priority MEDIUM 44CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

ModSecurity / libModSecurity 3.0.0 to 3.0.11 is affected by a WAF bypass for path-based payloads submitted via specially crafted request URLs. ModSecurity v3 decodes percent-encoded characters present in request URLs before it separates the URL path component from the optional query string component. This results in an impedance mismatch versus RFC compliant back-end applications. The vulnerability hides an attack payload in the path component of the URL from WAF rules inspecting it. A back-end may be vulnerable if it uses the path component of request URLs to construct queries. Integrators and users are advised to upgrade to 3.0.12. The ModSecurity v2 release line is not affected by this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00688 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
owasp-modsecurityModSecurity3.0.0 – 3.0.11—No fix listedCNA
  • ModSecurity Vendorowasp-modsecurity Affected 3.0.0 – 3.0.11 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*3.0.0 to before 3.0.12Vulnerableowasp-modsecurity
  • cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.0.12 Vulnerable ·owasp-modsecurity

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-1019
  2. 2026-10-03 Alias added: GHSA-w56r-g989-xqw3

References

Patch 1

Other 2

  • TI-2026-37865 ModSecurity: Multipart form-data parser silently strips embedded line breaks from… CVSS 3.1HIGH 8.6
  • TI-2026-30581 ModSecurity: Unsigned integer underflow in @verifySSN / @verifyCPF / @verifySVNR operators CVSS 4.0HIGH 8.2
  • TI-2026-23748 libModSecurity3 denial of service via segfault when using t:hexDecode on single-character query strings CVSS 4.0HIGH 8.2
  • TI-2025-31022 ModSecurity has possible DoS vulnerability in sanitiseArg action CVSS 3.1HIGH 7.5
  • TI-2025-34348 ModSecurity's Insufficient Return Value Handling can Lead to XSS and Source Code Disclosure CVSS 4.0MEDIUM 6.9
  • TI-2023-19686 Trustwave ModSecurity 3.x before 3.0.10 has Inefficient Algorithmic Complexity. CVSS 3.1HIGH 7.5
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences