Bug 2570008 (CVE-2026-125198)

Summary: CVE-2026-125198 ffmpeg: ffmpeg: Denial of Service via memory leak in MediaCodec wrapper
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedCC: bbrownin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FFmpeg. An attacker could provide a specially crafted media file with large configuration data to an application utilizing the Android MediaCodec component. Because the application fails to properly release allocated memory buffers during decoder setup, native memory leaks upon each configuration. This issue can lead to native resource exhaustion, resulting in a Denial of Service (DoS).
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Description OSIDB Bzimport 2026-11-10 19:30:32 UTC 
FFmpeg through 9.0.2 contains a memory leak vulnerability in mediaformat_jni_setBuffer() in libavcodec/mediacodec_wrapper.c that never frees buffers wrapped with NewDirectByteBuffer(). Attackers can supply crafted media files with large extradata, leaking native memory on each MediaCodec decoder configuration in Android applications and causing resource exhaustion.