CVE-2026-70631
Fixed in a distro release EPSS <1%CVSS 5.5
FFmpeg versions from 0.5 up to, but not including, 9.0 contain an uninitialized heap memory disclosure vulnerability in the native TIFF decoder in libavcodec/tiff.c. An attacker who can cause FFmpeg to decode a crafted TIFF file can supply a valid Deflate-compressed strip that terminates successfully after producing fewer bytes than the declared strip requires. The tiff_unpack_zlib() function allocates a heap buffer sized for the full declared strip but copies all declared rows via memcpy() regardless of how many bytes zlib actually decompressed, causing unwritten bytes that can contain stale data from prior heap allocations to be incorporated into decoded image output and potentially exposing sensitive data in persistent services.
Products: FFMPEG
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | eco-python-ffmpeg-6-minimal | no fix |
| Chainguard | eco-python-ffmpeg-6-minimal-dev | no fix |
| Chainguard | eco-python-ffmpeg-6-minimal-static | no fix |
| Chainguard | eco-python-ffmpeg-7-minimal | no fix |
| Chainguard | eco-python-ffmpeg-7-minimal-dev | no fix |
| Chainguard | eco-python-ffmpeg-7-minimal-static | no fix |
| Chainguard | eco-python-ffmpeg-8-minimal | no fix |
| Chainguard | eco-python-ffmpeg-8-minimal-dev | no fix |
| Chainguard | eco-python-ffmpeg-8-minimal-static | no fix |
| Chainguard | ffmpeg-6 | no fix |
| Chainguard | ffmpeg-7 | no fix |
| Chainguard | ffmpeg-7.1 | no fix |
| Chainguard | ffmpeg-8.0 | no fix |
| Chainguard | ffmpeg-8.1 | no fix |
| Chainguard | ffmpeg-cuda-fips-8.1 | 8.1.3-r0 |
| Chainguard | ffmpeg-cuda-fips-8.1-dev | 8.1.3-r0 |
| Chainguard | ffmpeg-cuda-fips-8.1-doc | 8.1.3-r0 |
| Chainguard | ffmpeg-cuda-fips-8.1-static | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-7.1 | no fix |
| Chainguard | ffmpeg-fips-7.1-dev | no fix |
| Chainguard | ffmpeg-fips-7.1-libavcodec61 | no fix |
| Chainguard | ffmpeg-fips-7.1-libavdevice61 | no fix |
| Chainguard | ffmpeg-fips-7.1-libavfilter10 | no fix |
| Chainguard | ffmpeg-fips-7.1-libavformat61 | no fix |
| Chainguard | ffmpeg-fips-7.1-libavutil59 | no fix |
| Chainguard | ffmpeg-fips-7.1-libpostproc58 | no fix |
| Chainguard | ffmpeg-fips-7.1-libswresample5 | no fix |
| Chainguard | ffmpeg-fips-7.1-libswscale8 | no fix |
| Chainguard | ffmpeg-fips-7.1-static | no fix |
| Chainguard | ffmpeg-fips-8.0 | no fix |
| Chainguard | ffmpeg-fips-8.0-dev | no fix |
| Chainguard | ffmpeg-fips-8.0-libavcodec62 | no fix |
| Chainguard | ffmpeg-fips-8.0-libavdevice62 | no fix |
| Chainguard | ffmpeg-fips-8.0-libavfilter11 | no fix |
| Chainguard | ffmpeg-fips-8.0-libavformat62 | no fix |
| Chainguard | ffmpeg-fips-8.0-libavutil60 | no fix |
| Chainguard | ffmpeg-fips-8.0-libswresample6 | no fix |
| Chainguard | ffmpeg-fips-8.0-libswscale9 | no fix |
| Chainguard | ffmpeg-fips-8.0-static | no fix |
| Chainguard | ffmpeg-fips-8.1 | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-dev | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-libavcodec62 | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-libavdevice62 | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-libavfilter11 | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-libavformat62 | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-libavutil60 | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-libswresample6 | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-libswscale9 | 8.1.3-r0 |
| Chainguard | ffmpeg-fips-8.1-static | 8.1.3-r0 |
| Chainguard | torchaudio-ffmpeg-tarballs | no fix |
| Chainguard | torchaudio-ffmpeg-tarballs-4.4.4 | no fix |
| Chainguard | torchaudio-ffmpeg-tarballs-5.0.3 | no fix |
| Chainguard | torchaudio-ffmpeg-tarballs-6.0 | no fix |
| Debian 12 | ffmpeg | no fix |
| Debian 13 | ffmpeg | no fix |
| Debian 14 | ffmpeg | 7:9.0.2-1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | ffmpeg-4 | 4.4.8-150400.3.75.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | ffmpeg-4 | 4.4.8-150400.3.75.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | ffmpeg-4 | 4.4.8-150600.13.55.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | ffmpeg-4 | 4.4.8-150400.3.75.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | ffmpeg-4 | 4.4.8-150400.3.75.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | ffmpeg-4 | 4.4.8-150600.13.55.1 |
| Ubuntu 26.10 | ffmpeg | no fix |
| Ubuntu Pro 14.04 LTS | libav | no fix |
| Ubuntu Pro 16.04 LTS | ffmpeg | no fix |
| Ubuntu Pro 18.04 LTS | ffmpeg | no fix |
| Ubuntu Pro 20.04 LTS | ffmpeg | 7:4.2.7-0ubuntu0.1+esm17 |
| Ubuntu Pro 22.04 LTS | ffmpeg | 7:4.4.2-0ubuntu0.22.04.1+esm16 |
| Ubuntu Pro 24.04 LTS | ffmpeg | no fix |
| Ubuntu Pro 26.04 LTS | ffmpeg | no fix |
| Wolfi | ffmpeg-7 | no fix |
| Wolfi | ffmpeg-7.1 | no fix |
| Wolfi | ffmpeg-8.0 | no fix |
| Wolfi | ffmpeg-8.1 | no fix |
| openSUSE Leap 16.0 | ffmpeg-7 | 7.1.5-160000.1.1 |
| openSUSE Tumbleweed | ffmpeg-4 | 4.4.8-5.1 |
| openSUSE Tumbleweed | ffmpeg-7 | 7.1.5-2.1 |
| openSUSE Tumbleweed | ffmpeg-8 | 8.1.2-3.1 |
| openSUSE Tumbleweed | ffmpeg-9 | 9.0.1-3.1 |