CVE-2026-78689

Description NGINX JavaScript njs has a vulnerability in the XML module's namespace prefix list parser, reachable through the xml.exclusiveC14n method. An unauthenticated remote attacker can trigger it when an affected NGINX configuration passes an externally controlled XML namespace prefix list t...

K000162602: NGINX ngx_http_js_module vulnerability CVE-2026-78689

Security Advisory Description NGINX JavaScript njs has a vulnerability in the XML module's namespace prefix list parser, reachable through the xml.exclusiveC14n method. An unauthenticated remote attacker can trigger it when an affected NGINX configuration passes an externally controlled XML...

njs -- heap buffer overflow in XML exclusive canonicalization

F5 reports: A flaw in the NGINX JavaScript XML module allows an out-of-bounds write when xml.exclusiveC14n processes a crafted XML namespace prefix list. This may lead to worker process crashes, heap corruption or memory disclosure. The NGINX SAML reference implementation is affected because it...