NGINX ngx_http_rewrite_module heap buffer overflow, out-of-bounds write in worker process memory pool via overlapping regex capture groups; CVSS v3.1 8.1 / v4.0 9.2; exploitation attempts per NCSC-NL; § 7 drop (primary 2026-05-22 out-of-window)
cve · CVE-2026-9256
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first 2026-05-24 → last 2026-05-28
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Entries about NGINX ngx_http_rewrite_module heap buffer overflow, out-of-bounds write in worker process memory pool via overlapping regex capture groups; CVSS v3.1 8.1 / v4.0 9.2; exploitation attempts per NCSC-NL; § 7 drop (primary 2026-05-22 out-of-window)
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