Description
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 | Product | Affected | Fixed |
|---|---|---|---|
| owasp-modsecurity | ModSecurity | >= 3.0.0, < 3.0.15 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | modsecurity | 3.0.15-1 | — |
| Debian 13 | modsecurity | 3.0.14-1+deb13u1 | — |
| Debian 12 | modsecurity | 3.0.9-1+deb12u2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | modsecurity | No fix yet | — |
| Ubuntu 26.04 LTS | modsecurity | No fix yet | — |
| Ubuntu 25.10 | modsecurity | No fix yet | — |
| Ubuntu 24.04 LTS | modsecurity | No fix yet | — |
| Ubuntu 22.04 LTS | modsecurity | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | modsecurity | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | modsecurity | 3.0.15-1.1 | openSUSE-SU-2026:10732-1 |
Advisories 2
- WID-SEC-2026-1308 OWASP ModSecurity: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · May 12, 2026
- openSUSE-SU-2026:10732-1 libmodsecurity3-3.0.15-1.1 on GA media SUSE / openSUSE Security Updates · May 9, 2026