Bug 2457860 (CVE-2026-30999)

Summary: CVE-2026-30999 FFmpeg: FFmpeg: Denial of Service via heap buffer overflow in av_bprint_finalize()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbrownin, ebourniv, hasun, jkoehler, lgallett, lphiri, nyancey, ptisnovs, sbunciak
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FFmpeg. A remote attacker could exploit a heap buffer overflow vulnerability in the `av_bprint_finalize()` function by providing a specially crafted input. This could lead to a Denial of Service (DoS), making the affected system or application unavailable to legitimate users.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2457965, 2457967, 2457969, 2457971, 2457973    
Bug Blocks:    

Description OSIDB Bzimport 2026-04-13 15:03:45 UTC
A heap buffer overflow in the av_bprint_finalize() function of FFmpeg v8.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.