Description
A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | FFmpeg | 2.0 – < 6.* | 6.* |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ffmpeg | 7:6.1-1 | — |
| Debian 13 | ffmpeg | 7:6.1-1 | — |
| Debian 12 | ffmpeg | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ffmpeg | No fix yet | — |
| Ubuntu 25.10 | ffmpeg | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | ffmpeg | No fix yet | — |
| Ubuntu Pro 18.04 LTS | ffmpeg | No fix yet | — |
| Ubuntu Pro 16.04 LTS | ffmpeg | No fix yet | — |
| Ubuntu Pro 14.04 LTS | libav | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | ffmpeg-4 | 4.4.6-150600.13.38.1 | SUSE-SU-2026:2445-1, SUSE-SU-2026:0198-1 |
| SLES 15 SP4 | ffmpeg-4 | 4.4.6-150400.3.60.1 | SUSE-SU-2026:2444-1, SUSE-SU-2026:0229-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | ffmpeg-4 | 4.4.6-150400.3.60.1 | SUSE-SU-2026:2444-1, SUSE-SU-2026:0229-1 |
| SLE HPC 15 SP4 | ffmpeg-4 | 4.4.6-150400.3.60.1 | SUSE-SU-2026:2444-1, SUSE-SU-2026:0229-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ffmpeg-4 | 4.4.6-10.1 | openSUSE-SU-2026:10027-1 |
| openSUSE Tumbleweed | ffmpeg-7 | 7.1.3-1.1 | openSUSE-SU-2026:10028-1 |
| openSUSE Leap 16.0 | ffmpeg-7 | 7.1.4-160000.1.1 | openSUSE-SU-2026:21211-1 |
| openSUSE Leap 15.6 | ffmpeg-4 | 4.4.6-150600.13.38.1 | SUSE-SU-2026:0198-1 |
Advisories 7
- openSUSE-SU-2026:21211-1 Security update for ffmpeg-7 SUSE / openSUSE Security Updates · Jul 3, 2026
- SUSE-SU-2026:2444-1 Security update for ffmpeg-4 SUSE / openSUSE Security Updates · Jun 19, 2026
- SUSE-SU-2026:2445-1 Security update for ffmpeg-4 SUSE / openSUSE Security Updates · Jun 19, 2026
- openSUSE-SU-2026:10027-1 ffmpeg-4-4.4.6-10.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10028-1 ffmpeg-7-7.1.3-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0229-1 Security update for ffmpeg-4 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0198-1 Security update for ffmpeg-4 SUSE / openSUSE Security Updates · Mar 23, 2026
References
- RHBZ#2253172 issue-tracking