MEDIUM 5.8 NVD
CVE-2026-115567
Tokio is a runtime for writing applications with Rust. In 1.54.0, a race condition between tokio::time::Interval::poll_tick (including .tick().await) and the mu
Tokio is a runtime for writing applications with Rust. In 1.54.0, a race condition between tokio::time::Interval::poll_tick (including .tick().await) and the multi-threaded runtime's time driver could drop an internal timer entry without synchronizing with the driver thread that was firing it. The race caused a use-after-free on the timer's waker and task state in safe Rust, which could produce assertion panics, task reference-count corruption, or heap memory corruption. This issue is fixed in 1.54.1.
References
- https://github.com/tokio-rs/tokio/commit/2b4eba7833864c04ecd2f3e5f4a97ff4f6fa28d0
- https://github.com/tokio-rs/tokio/commit/5ed619bbaba87357ee5103d71b75e7c84cad99c9
- https://github.com/tokio-rs/tokio/pull/8458
- https://github.com/tokio-rs/tokio/pull/8692
- https://github.com/tokio-rs/tokio/releases/tag/tokio-1.54.1
This medium severity vulnerability with a CVSS score of 5.8 was published on 2026-10-23 via NVD.
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