GHSA-5pmw-9j92-3c4c
OpenH264 Rust API Openh264 Decoding Functions Heap Overflow Vulnerability
Details
OpenH264 recently reported a [heap overflow](https://github.com/cisco/openh264/security/advisories/GHSA-m99q-5j7x-7m9x) that was fixed in upstream [63db555](https://github.com/cisco/openh264/commit/63db555e30986e3a5f07871368dc90ae78c27449) and [integrated into](https://github.com/ralfbiedert/openh264-rs/commit/3a822fff0b4c9a984622ca2b179fe8898ac54b14) our 0.6.6 release. For users relying on Cisco's pre-compiled DLL, we also published 0.8.0, which is compatible with their latest fixed DLL version 2.6.0.
In other words: - if you rely on our `source` feature only, >=0.6.6 should be safe, - if you rely on `libloading`, you must upgrade to 0.8.0 _and_ use their latest DLL >=2.6.0.
Users handling untrusted video files should update immediately.
Are you affected?
Enter the version of the package you're using.
Affected packages
0Fixed in: 0.8.0Upgrade openh264-sys2 to 0.8.0 or newer (ecosystem crates.io).
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-27091[ADVISORY]
- https://github.com/cisco/openh264/pull/3818[WEB]
- https://github.com/ralfbiedert/openh264-rs/commit/3a822fff0b4c9a984622ca2b179fe8898ac54b14[WEB]
- https://github.com/ralfbiedert/openh264-rs[PACKAGE]
- https://rustsec.org/advisories/RUSTSEC-2025-0008.html[WEB]