CVE-2026-30923
highPriorität · verfolgen · 30EPSS 0.004 · 38. PerzentilDEEUUSEPSS · bewertet 2026-10-27
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Libmodsecurity is one component of the ModSecurity v3 project. A segmentation fault occurs when a rule using the t:hexDecode transformation inspects a query string parameter containing a single character. An attacker can exploit this to crash worker processes, causing a denial of service. Service resumes once the attack stops as worker processes recover from the segfault. All versions before 3.0.15 of libModSecurity3 are affected. This has been patched in version 3.0.15.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 4.6–8.2
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (8)
Betroffene Produkte und Versionsbereiche.
Advisories (3)
Hersteller- und Ökosystem-Meldungen dazu.
- WID-SEC-W-2026-1308OWASP ModSecurity: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-04-28csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in OWASP ModSecurity ausnutzen, um einen Denial of Service Angriff durchzuführen.
- BIT-modsecurity-2026-30923libModSecurity3 denial of service via segfault when using t:hexDecode on single-character query strings2026-05-07vendor · osvUS
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Libmodsecurity is one component of the ModSecurity v3 project. A segmentation fault occurs when a rule using the t:hexDecode transformation inspects a query string parameter containing a single character. An attacker can exploit this to crash worker processes, causing a denial of service. Service resumes once the attack stops as worker processes recover from the segfault. All versions before 3.0.15 of libModSecurity3 are affected. This has been patched in version 3.0.15.
- BIT-modsecurity2-2026-30923libModSecurity3 denial of service via segfault when using t:hexDecode on single-character query strings2026-05-07vendor · osvUS
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Libmodsecurity is one component of the ModSecurity v3 project. A segmentation fault occurs when a rule using the t:hexDecode transformation inspects a query string parameter containing a single character. An attacker can exploit this to crash worker processes, causing a denial of service. Service resumes once the attack stops as worker processes recover from the segfault. All versions before 3.0.15 of libModSecurity3 are affected. This has been patched in version 3.0.15.
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
- CNNVD-202605-756cnnvd
- EUVD-2026-27422enisa_euvd
- BIT-modsecurity-2026-30923osv
- GHSA-qrjc-3jpc-3h2gosv
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (6)
Externe Belege — Patches, Meldungen, Analysen.
- https://modsecurity.org/Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-30923cnnvd
- https://github.com/owasp-modsecurity/ModSecurity/releases/tag/v3.0.15enisa_euvd
- https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-qrjc-3jpc-3h2genisa_euvd
- https://github.com/owasp-modsecurity/ModSecurity/releases/tag/v3.0.15PatchProductnvd
- https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-qrjc-3jpc-3h2gExploitVendor Advisorynvd
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