Skip to main content

FFmpeg CVE-2026-8461

| EUVDEUVD-2026-37878 HIGH
Out-of-bounds Write (CWE-787)
2026-06-18 JFROG GHSA-qff7-4q6c-m8h6
8.8
CVSS 3.1 · Vendor: JFROG
Share

Severity by source

Vendor (JFROG) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today AI
7.5 HIGH

Network-delivered malicious file requires user/pipeline to decode it (UI:R, PR:N); reliable RCE from an OOB write depends on heap state and mitigations, justifying AC:H over AC:L, with full CIA impact on the decoding process.

3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
HIGH
qualitative
Red Hat
8.8 HIGH
qualitative

Primary rating from Vendor (JFROG).

CVSS VectorVendor: JFROG

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Patch available
Jun 18, 2026 - 13:46 EUVD
Analysis Generated
Jun 18, 2026 - 12:32 vuln.today

DescriptionCVE.org

An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution.

This vulnerability is associated with the file libavcodec/magicyuv.C.

This issue affects FFmpeg before version 8.1.2.

AnalysisAI

Out-of-bounds write in FFmpeg's libavcodec MagicYUV decoder (libavcodec/magicyuv.c) affects all FFmpeg versions before 8.1.2, allowing remote attackers to cause denial-of-service and potentially achieve remote code execution when a victim processes a crafted MagicYUV-encoded media file. No public exploit identified at time of analysis, but the broad deployment of FFmpeg across media players, transcoding pipelines, browsers, and server-side processing makes this a high-priority patch. EPSS and CISA KEV data were not provided in the input.

Technical ContextAI

FFmpeg is the de facto open-source multimedia framework used for decoding, encoding, transcoding, and streaming audio/video across countless desktop applications, mobile apps, cloud media pipelines, and embedded devices. libavcodec is FFmpeg's codec library, and the affected component is the MagicYUV decoder - MagicYUV is a fast lossless intermediate codec commonly used in video editing workflows. The root cause is CWE-787 (Out-of-bounds Write), meaning the decoder writes data past the bounds of an allocated buffer while parsing attacker-controlled MagicYUV bitstream fields, which can corrupt adjacent heap memory and, with appropriate heap grooming, lead to control-flow hijack. The affected CPE cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* covers all upstream FFmpeg builds prior to 8.1.2; downstream redistributors (Linux distros, Homebrew, application bundles statically linking libavcodec) inherit the flaw until they rebase.

RemediationAI

Upstream fix available (PR https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23159); released patched version 8.1.2 is referenced in the description but should be verified against the official FFmpeg release once tags are published. Upgrade FFmpeg and any redistributed libavcodec to 8.1.2 or later, and rebuild downstream applications that statically link libavcodec. If immediate patching is not possible, compensating controls include disabling the MagicYUV decoder at build time (configure with --disable-decoder=magicyuv), filtering MagicYUV input at ingest by rejecting FourCC 'MAGY' / 'M8RG' / 'M8RA' / 'M8G0' / 'M8Y0' etc. before handoff to libavcodec, or sandboxing transcoder workers (seccomp, gVisor, separate user namespace) so an exploited decoder cannot pivot - note the trade-off that disabling the decoder will break legitimate MagicYUV workflows (typically video editors), and ingest filtering by FourCC can be bypassed by containers that re-tag streams.

More in Ffmpeg

View all
CVE-2016-1897 MEDIUM POC
5.5 Jan 15

FFmpeg 2.x allows remote attackers to conduct cross-origin attacks and read arbitrary files by using the concat protocol

CVE-2017-9993 HIGH
7.5 Jun 28

FFmpeg before 2.8.12, 3.0.x and 3.1.x before 3.1.9, 3.2.x before 3.2.6, and 3.3.x before 3.3.2 does not properly restric

CVE-2016-1898 MEDIUM POC
5.5 Jan 15

FFmpeg 2.x allows remote attackers to conduct cross-origin attacks and read arbitrary files by using the subfile protoco

CVE-2013-4265 CRITICAL POC
10.0 Nov 23

The av_reallocp_array function in libavutil/mem.c in FFmpeg before 2.0.1 has an unspecified impact and remote vectors re

CVE-2020-12284 CRITICAL POC
9.8 Apr 28

cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEG_MA

CVE-2026-58049 HIGH POC
8.8 Jun 28

Out-of-bounds heap write in FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) allows attackers to corrupt m

CVE-2021-38094 HIGH POC
8.8 Sep 20

Integer Overflow vulnerability in function filter_sobel in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attacker

CVE-2021-38093 HIGH POC
8.8 Sep 20

Integer Overflow vulnerability in function filter_robert in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attacke

CVE-2021-38092 HIGH POC
8.8 Sep 20

Integer Overflow vulnerability in function filter_prewitt in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attack

CVE-2021-38091 HIGH POC
8.8 Sep 20

Integer Overflow vulnerability in function filter16_sobel in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attack

CVE-2021-38090 HIGH POC
8.8 Sep 20

Integer Overflow vulnerability in function filter16_roberts in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows atta

CVE-2021-30123 HIGH POC
8.8 Apr 07

FFmpeg <=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code

Vendor StatusVendor

SUSE

Severity: Important
Product Status
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 Affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Affected

Share

CVE-2026-8461 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy