CVE-2026-46690

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

5.8 / 10

Vector String

                                        CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H                                    

Vulnerability Description

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.

Vulnerability Details

Published Date

May 29, 2026

Last Modified

June 17, 2026

CWE ID

CWE-125

Source

GitHub

Vendor

rust

Product

unbounded-spsc

External References

https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
https://github.com/advisories/GHSA-6m57-8r3p-pqx6

CVE-2026-46690

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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