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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.8
- CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
- EPSS probability
- 0.13%
- CWE
- CWE-125, CWE-415, CWE-704, CWE-787
- Published
- 2026-06-12
- Last modified
- 2026-06-12
Affected products
- spearman unbounded-spsc
Weakness type
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