Description
A weakness has been identified in GPAC up to 26.02.0. This affects an unknown part of the file src/utils/base_encoding.c of the component ISOBMFF Parser. Executing a manipulation can lead to highly compressed data. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. This patch is called 297f2d8d1f493d8b241330533cd47f7da758aeb3. A patch should be applied to remediate this issue. The vendor confirms: "We added a check on inflate output size, if it surpasses 32 times the input size we stop in error. This value could be adjusted later."
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | GPAC | 26.02 | — |
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 11 | gpac | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | gpac | No fix yet | — |
| Ubuntu Pro 22.04 LTS | gpac | No fix yet | — |
| Ubuntu Pro 20.04 LTS | gpac | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | gpac | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gpac | No fix yet | — |
| Ubuntu Pro 14.04 LTS | gpac | No fix yet | — |
References
- VDB-374531 | GPAC ISOBMFF base_encoding.c data amplification vdb-entry
- VDB-374531 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-13523 | CVE Analysis and Report third-party-advisory
- Submit #840159 | GPAC <= 26.02.0 Uncontrolled Resource Consumption third-party-advisory
- https://github.com/gpac/gpac/issues/3588 exploit issue-tracking
- https://github.com/gpac/gpac/pull/3589 issue-tracking patch
- https://github.com/gpac/gpac/commit/297f2d8d1f493d8b241330533cd47f7da758aeb3 patch
- https://github.com/gpac/gpac/ product