CVE-2026-103932

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Source
https://cve.org/CVERecord?id=CVE-2026-103932
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103932.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-103932
Aliases
  • GHSA-5m93-4h75-3p2w
Downstream
Published
2026-11-05T15:42:46Z
Modified
2026-11-05T21:30:59Z
Severity
  • 5.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N CVSS Calculator
Summary
ModSecurity: PCRE2 `@rxGlobal` match-limit errors are converted to no-match
Details

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.5 until 3.0.17, the PCRE2 implementation of @rxGlobal in src/utils/regex.cc converts pcre2_match match-limit errors into an ordinary no-match result instead of propagating a non-OK RegexResult. When attacker-controlled input exhausts SecPcreMatchLimit, rules that rely on MSC_PCRE_LIMITS_EXCEEDED or its TX compatibility indicator do not run, so a request that should be rejected can pass through the WAF. The issue affects PCRE2 deployments that use @rxGlobal with a limit-exhaustible expression and a compensating rule; it is not a universal WAF bypass. This issue is fixed in version 3.0.17.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-253"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103932.json"
}
References

Affected packages

Git / github.com/owasp-modsecurity/modsecurity

Affected ranges

Type
GIT
Repo
https://github.com/owasp-modsecurity/modsecurity
Events
Introduced
bf881a4eda343d37629e39ede5e28b70dc4067c0
Fixed
1925753989ccce977cdaae417b55c9726c7cf02c
Fixed
d92bdc3b2183824ba3c582154b7385ee8349ea7e
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "3.0.5"
                },
                {
                    "fixed": "3.0.17"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "d92bdc3b2183824ba3c582154b7385ee8349ea7e"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v3.0.17",
            "range": [
                {
                    "fixed": "1925753989ccce977cdaae417b55c9726c7cf02c"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v3.*
v3.0.10
v3.0.11
v3.0.12
v3.0.13
v3.0.14
v3.0.15
v3.0.16
v3.0.5
v3.0.6
v3.0.7
v3.0.8
v3.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103932.json"