CVE-2026-46690
unbounded_spsc is an "unbounded" extension of bounded_spsc_queue. In versions 0.2.0 and prior, sender::send pointer-as-value transmute causes OOB read and fake-Arc drop under TX/RX race. At time of publication, there are no publicly available patches.
- CVSS 3.1
- 5.8
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H - EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-125, CWE-415, CWE-704, CWE-787
- Published
- Modified
- Record from
- the NVD, synced
Affected
- spearman:unbounded-spsc
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-6m57-8r3p-pqx6 | crates.io | unbounded-spsc | <=0.2.0 | no fix published |