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Advisory record · GHSA-8gw6-724c-9h38

Use-after-free when a future's `Drop` panics while the container is dropped

No CVSS score

Published by the GitHub Advisory Database at 12 Sept 2026, 12:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
unicyclecrates.io>=0.0.0-0, <0.10.30.10.3
Identifiers
GHSA-8gw6-724c-9h38 · RUSTSEC-2026-0298
Published
12 Sept 2026
Updated
22 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Versions of the unicycle crate before 0.10.3 are affected by a use-after-free. If a future's Drop implementation panics while the container is being dropped, the storage's length is never committed, and a second cleanup pass then reads memory that was already freed. An attacker needs no special method call, only the ability to get a panicking future dropped inside the container. Upgrade to unicycle 0.10.3.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

No source has published a CVSS score for this record yet.

  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:24 UTC First seen by agentprime
  2. 31 Oct 2026, 14:24 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.