nginx -- multiple vulnerabilities

2026-06-17 · CVE-2026-42530, CVE-2026-42055, CVE-2026-48142 · VuXML entry

The nginx developers report: A use-after-free vulnerability when using HTTP/3 and processing a specially crafted QUIC session may allow memory corruption or a segmentation fault in a worker process (CVE-2026-42530). A heap memory buffer overflow vulnerability when using the "ignore_invalid_headers off;" and "large_client_header_buffers" directives with large configured values while proxying a specially crafted …

Affected versions

• nginx-devel < 1.31.2

By system

1 still vulnerable, 1 fixed. Where VuXML applies (FreeBSD, DragonFly, FreeBSD's derivatives) a port is vulnerable while its version is in a range; pkgsrc says itself whether it lists a CVE of this advisory; OpenBSD and MidnightBSD keep no list this site reads, so their row is only an estimate: FreeBSD's ranges applied to upstream's version.