CVE-2026-46690

5.8 MEDIUM
Published: June 12, 2026 Modified: June 16, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
Source: security-advisories@github.com
Exploit Vendor Advisory
https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Vendor Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.8 / 10.0
EPSS (Exploit Probability)
0.1%
2th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

spearman