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Advisory record · RUSTSEC-2026-0309

`SinglyLinkedList::remove` dereferences a null link

No CVSS score

Published by OSV at 20 Sept 2026, 12:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
bun_collectionscrates.io>=0.0.0-0, <0.2.10.2.1
Identifiers
RUSTSEC-2026-0309
Published
20 Sept 2026
Updated
25 Sept 2026

Machine-written summary

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

Versions of bun_collections before 0.2.1 have a flaw in SinglyLinkedList::remove: on an empty list, or when the node is not in the list, it dereferences a null pointer, which is undefined behavior. The source says safe code can construct the empty list, so no special access is described as required, and the effect is described only as undefined behavior. Upgrade to bun_collections 0.2.1, which adds an assertion that rejects both cases. The source notes that 0.2.0 was yanked and that versions 0.1.0 through 0.1.13 remain published without the fix.

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.