⤷ Title: CVE-2026-42530: NGINX HTTP/3 RCE Proof-of-Concept Publicly Disclosed
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𐀪 Author: Do Son
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ⴵ Time: Thu, 30 Jul 2026 13:02:26 +0000
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⌗ Tags: #Vulnerability Report #CVE_2026_42530 #HTTP/3 #nginx #NGINX HTTP/3 #ngx_http_v3_module #proof_of_concept #QPACK #QUIC #Remote Code Execution #use after free
════════════════════════
𐀪 Author: Do Son
════════════════════════
ⴵ Time: Thu, 30 Jul 2026 13:02:26 +0000
════════════════════════
⌗ Tags: #Vulnerability Report #CVE_2026_42530 #HTTP/3 #nginx #NGINX HTTP/3 #ngx_http_v3_module #proof_of_concept #QPACK #QUIC #Remote Code Execution #use after free
Daily CyberSecurity
CVE-2026-42530: NGINX HTTP/3 RCE Proof-of-Concept Publicly Disclosed
TL;DR: A public proof-of-concept now targets CVE-2026-42530, an NGINX HTTP/3 RCE flaw rated CVSS 9.2. The use-after-free sits in the QPACK code of the HTTP/3 module. F5 fixed it in NGINX Open Sour…