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CVE-2026-32647 is a memory-safety vulnerability in the NGINX ngx_http_mp4_module affecting both NGINX Open Source and NGINX Plus. When the module processes a specially crafted MP4 file, it can trigger a buffer over-read or buffer over-write in NGINX worker memory, leading to memory corruption in the worker process. The flaw is associated with MP4 parsing in deployments where the ngx_http_mp4_module is present and the mp4 directive is enabled. Reported consequences include worker process termination and possible code execution. Affected NGINX Open Source versions are 1.1.19 through 1.29.6, with fixes in 1.28.3 and 1.29.7. Affected NGINX Plus branches include R32 through R36, with fixes released in R32 P5, R35 P2, and R36 P3.
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An NGINX ngx_http_mp4_module vulnerability mentioned only as background context.
An out-of-bounds read memory corruption vulnerability in the ngx_http_mp4_module of NGINX Open Source and NGINX Plus that can be triggered by a specially crafted MP4 file, causing denial of service and potentially enabling arbitrary code execution.
A vulnerability in the NGINX Open Source and NGINX Plus ngx_http_mp4_module that may allow a specially crafted MP4 file to cause a buffer over-read or over-write in worker memory, leading to worker termination or possible code execution.
A vulnerability in the nginx ngx_http_mp4_module triggered by processing a specially crafted MP4 file.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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