CVE-2026-107678
FFmpeg through 9.0.2 Stack Exhaustion via Recursive Free of pssh Boxes
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
FFmpeg through 9.0.2 Stack Exhaustion via Recursive Free of pssh Boxes
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
- Record
CVE-2026-107678- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-674
- Updated
- 2026-11-02
EUVDEUVD-2026-95083
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
- Record
EUVD-2026-95083- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rp4v-7m3g-89vg
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free()...
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
- Record
GHSA-rp4v-7m3g-89vg- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-674
- Updated
- 2026-11-02
NVD
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
- Record
CVE-2026-107678- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-674
- Updated
- 2026-11-02
OSV
FFmpeg through 9.0.2 Stack Exhaustion via Recursive Free of pssh Boxes
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
- Record
CVE-2026-107678- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-674
- Updated
- 2026-11-07
OSVDEBIAN-CVE-2026-107678
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
- Record
DEBIAN-CVE-2026-107678- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-107678
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
- Record
UBUNTU-CVE-2026-107678- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ffmpegDebian:12 |
All versions, plus listed versions 7:5.1.3-17:5.1.3-27:5.1.4-0+deb12u17:5.1.5-0+deb12u17:5.1.6-0+deb12u1 Show 45 moreShow less7:5.1.7-0+deb12u17:5.1.8-0+deb12u17:5.1.9-0+deb12u17:6.0-17:6.0-27:6.0-37:6.0-47:6.0-57:6.0-67:6.0-77:6.0-87:6.0-97:6.1-17:6.1-27:6.1-37:6.1-47:6.1-57:6.1.1-17:6.1.1-27:6.1.1-37:6.1.1-47:6.1.1-57:7.0-17:7.0.1-17:7.0.1-27:7.0.1-37:7.0.1-47:7.0.1-57:7.0.2-17:7.0.2-27:7.0.2-37:7.1-17:7.1-27:7.1-37:7.1-47:7.1.1-17:7.1.2-17:7.1.3-17:8.0-17:8.0-27:8.0.1-17:8.0.1-27:8.0.1-37:8.1-17:8.1-2 |
None known |
ffmpegDebian:13 |
All versions, plus listed versions 7:7.1.1-17:7.1.2-0+deb13u17:7.1.2-17:7.1.3-0+deb13u17:7.1.3-1 Show 21 moreShow less7:7.1.4-0+deb13u17:7.1.5-0+deb13u17:8.0-17:8.0-27:8.0.1-17:8.0.1-27:8.0.1-37:8.1-17:8.1-27:8.1-37:8.1.1-17:8.1.1-27:8.1.1-37:8.1.1-47:8.1.2-17:8.1.2-27:9.0-17:9.0.1-17:9.0.2-17:9.0.2-27:9.0.2-3 |
None known |
ffmpegDebian:14 |
All versions, plus listed versions 7:7.1.1-17:7.1.2-17:7.1.3-17:8.0-17:8.0-2 Show 17 moreShow less7:8.0.1-17:8.0.1-27:8.0.1-37:8.1-17:8.1-27:8.1-37:8.1.1-17:8.1.1-27:8.1.1-37:8.1.1-47:8.1.2-17:8.1.2-27:9.0-17:9.0.1-17:9.0.2-17:9.0.2-27:9.0.2-3 |
None known |
libavUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 6:0.8.7-1ubuntu26:9.10-1ubuntu16:9.10-1ubuntu26:9.10-1ubuntu56:9.10-1ubuntu6 Show 9 moreShow less6:9.10-1ubuntu76:9.11-2ubuntu16:9.11-2ubuntu26:9.13-0ubuntu0.14.04.16:9.14-0ubuntu0.14.04.16:9.16-0ubuntu0.14.04.16:9.18-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.1+esm1 |
None known |
ffmpegUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 7:2.7.2-1build17:2.8.1-1ubuntu17:2.8.2-1ubuntu17:2.8.3-17:2.8.4-1 Show 31 moreShow less7:2.8.4-1ubuntu17:2.8.4-1ubuntu27:2.8.4-1ubuntu37:2.8.4-1ubuntu47:2.8.6-1ubuntu17:2.8.6-1ubuntu27:2.8.8-0ubuntu0.16.04.17:2.8.10-0ubuntu0.16.04.17:2.8.11-0ubuntu0.16.04.17:2.8.14-0ubuntu0.16.04.17:2.8.15-0ubuntu0.16.04.17:2.8.15-0ubuntu0.16.04.1+esm17:2.8.17-0ubuntu0.17:2.8.17-0ubuntu0.1+esm17:2.8.17-0ubuntu0.1+esm27:2.8.17-0ubuntu0.1+esm37:2.8.17-0ubuntu0.1+esm47:2.8.17-0ubuntu0.1+esm57:2.8.17-0ubuntu0.1+esm67:2.8.17-0ubuntu0.1+esm77:2.8.17-0ubuntu0.1+esm87:2.8.17-0ubuntu0.1+esm97:2.8.17-0ubuntu0.1+esm107:2.8.17-0ubuntu0.1+esm117:2.8.17-0ubuntu0.1+esm127:2.8.17-0ubuntu0.1+esm137:2.8.17-0ubuntu0.1+esm147:2.8.17-0ubuntu0.1+esm157:2.8.17-0ubuntu0.1+esm167:2.8.17-0ubuntu0.1+esm177:2.8.17-0ubuntu0.1+esm18 |
None known |
ffmpegUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 7:3.3.4-27:3.3.4-2build37:3.4-2ubuntu27:3.4-47:3.4-4build1 Show 25 moreShow less7:3.4.1-17:3.4.1-1build17:3.4.2-17:3.4.2-1build17:3.4.2-27:3.4.4-0ubuntu0.18.04.17:3.4.6-0ubuntu0.18.04.17:3.4.8-0ubuntu0.27:3.4.11-0ubuntu0.17:3.4.11-0ubuntu0.1+esm17:3.4.11-0ubuntu0.1+esm27:3.4.11-0ubuntu0.1+esm37:3.4.11-0ubuntu0.1+esm47:3.4.11-0ubuntu0.1+esm57:3.4.11-0ubuntu0.1+esm67:3.4.11-0ubuntu0.1+esm77:3.4.11-0ubuntu0.1+esm87:3.4.11-0ubuntu0.1+esm97:3.4.11-0ubuntu0.1+esm107:3.4.11-0ubuntu0.1+esm117:3.4.11-0ubuntu0.1+esm127:3.4.11-0ubuntu0.1+esm137:3.4.11-0ubuntu0.1+esm147:3.4.11-0ubuntu0.1+esm157:3.4.11-0ubuntu0.1+esm16 |
None known |
ffmpegUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 7:4.1.4-1build27:4.2.1-27:4.2.1-2ubuntu17:4.2.2-1build17:4.2.2-1ubuntu1 Show 21 moreShow less7:4.2.4-1ubuntu0.17:4.2.4-1ubuntu0.1+esm17:4.2.7-0ubuntu0.17:4.2.7-0ubuntu0.1+esm17:4.2.7-0ubuntu0.1+esm27:4.2.7-0ubuntu0.1+esm37:4.2.7-0ubuntu0.1+esm47:4.2.7-0ubuntu0.1+esm57:4.2.7-0ubuntu0.1+esm67:4.2.7-0ubuntu0.1+esm77:4.2.7-0ubuntu0.1+esm87:4.2.7-0ubuntu0.1+esm97:4.2.7-0ubuntu0.1+esm107:4.2.7-0ubuntu0.1+esm117:4.2.7-0ubuntu0.1+esm127:4.2.7-0ubuntu0.1+esm137:4.2.7-0ubuntu0.1+esm147:4.2.7-0ubuntu0.1+esm157:4.2.7-0ubuntu0.1+esm167:4.2.7-0ubuntu0.1+esm177:4.2.7-0ubuntu0.1+esm18 |
None known |
ffmpegUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 7:4.4-6ubuntu57:4.4.1-2ubuntu17:4.4.1-3ubuntu17:4.4.1-3ubuntu27:4.4.1-3ubuntu3 Show 19 moreShow less7:4.4.1-3ubuntu57:4.4.2-0ubuntu0.22.04.17:4.4.2-0ubuntu0.22.04.1+esm17:4.4.2-0ubuntu0.22.04.1+esm27:4.4.2-0ubuntu0.22.04.1+esm37:4.4.2-0ubuntu0.22.04.1+esm47:4.4.2-0ubuntu0.22.04.1+esm57:4.4.2-0ubuntu0.22.04.1+esm67:4.4.2-0ubuntu0.22.04.1+esm77:4.4.2-0ubuntu0.22.04.1+esm87:4.4.2-0ubuntu0.22.04.1+esm97:4.4.2-0ubuntu0.22.04.1+esm107:4.4.2-0ubuntu0.22.04.1+esm117:4.4.2-0ubuntu0.22.04.1+esm127:4.4.2-0ubuntu0.22.04.1+esm137:4.4.2-0ubuntu0.22.04.1+esm147:4.4.2-0ubuntu0.22.04.1+esm157:4.4.2-0ubuntu0.22.04.1+esm167:4.4.2-0ubuntu0.22.04.1+esm17 |
None known |
ffmpegUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 7:6.0-6ubuntu17:6.0-9ubuntu17:6.1-2ubuntu17:6.1-3ubuntu17:6.1-4ubuntu1 Show 17 moreShow less7:6.1-5ubuntu17:6.1.1-1ubuntu17:6.1.1-3ubuntu17:6.1.1-3ubuntu57:6.1.1-3ubuntu5+esm17:6.1.1-3ubuntu5+esm27:6.1.1-3ubuntu5+esm37:6.1.1-3ubuntu5+esm47:6.1.1-3ubuntu5+esm57:6.1.1-3ubuntu5+esm67:6.1.1-3ubuntu5+esm77:6.1.1-3ubuntu5+esm87:6.1.1-3ubuntu5+esm107:6.1.1-3ubuntu5+esm117:6.1.1-3ubuntu5+esm127:6.1.1-3ubuntu5+esm137:6.1.1-3ubuntu5+esm15 |
None known |
ffmpegUbuntu:26.10 |
All versions, plus listed versions 7:8.0.1-3ubuntu27:8.1-3ubuntu37:8.1.2-2ubuntu2 |
None known |
ffmpegUbuntu:Pro:26.04:LTS |
All versions, plus listed versions 7:7.1.1-1ubuntu47:7.1.2-1ubuntu37:7.1.2-1ubuntu47:7.1.3-1ubuntu17:8.0.1-2ubuntu1 Show 6 moreShow less7:8.0.1-3ubuntu17:8.0.1-3ubuntu27:8.0.1-3ubuntu2+esm17:8.0.1-3ubuntu2+esm37:8.0.1-3ubuntu2+esm47:8.0.1-3ubuntu2+esm5 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-107678 is a medium vulnerability (CVSS 5.7) in Ffmpeg, published October 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.09%, the 0th percentile. No source names a fixed version.
References
code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24593
github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavutil/encryption_info.c
ffmpeg.org
vulncheck.com/advisories/ffmpeg-through-9.0.2-stack-exhaustion-via-recursive-free-of-pssh-boxes
nvd.nist.gov/vuln/detail/CVE-2026-107678
Left out here: 12 versions. The JSON record has them.