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CVE Vulnerability Details :
CVE-2026-42268
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-12 May, 2026 | 21:40
Updated At-14 May, 2026 | 12:34
Rejected At-
▼CVE Numbering Authority (CNA)
ModSecurity: Unsigned integer underflow in @verifySSN / @verifyCPF / @verifySVNR operators

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 to before 3.0.15, there is an unhandled exception (std::out_of_range) caused by unsigned integer underflow in libmodsecurity3 if the user (administrator) uses a rule any of @verifySSN, @verifyCPF, or @verifySVNR. This vulnerability is fixed in 3.0.15.

Affected Products
Vendor
owasp-modsecurity
Product
ModSecurity
Versions
Affected
  • >= 3.0.0, < 3.0.15
Problem Types
TypeCWE IDDescription
CWECWE-191CWE-191: Integer Underflow (Wrap or Wraparound)
CWECWE-248CWE-248: Uncaught Exception
Type: CWE
CWE ID: CWE-191
Description: CWE-191: Integer Underflow (Wrap or Wraparound)
Type: CWE
CWE ID: CWE-248
Description: CWE-248: Uncaught Exception
Metrics
VersionBase scoreBase severityVector
4.08.2HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Version: 4.0
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-vwr3-7x7g-7p9w
x_refsource_CONFIRM
Hyperlink: https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-vwr3-7x7g-7p9w
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-vwr3-7x7g-7p9w
exploit
Hyperlink: https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-vwr3-7x7g-7p9w
Resource:
exploit
Details not found