Vulnerability DatabaseCVE-2026-46690
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CVE-2026-46690
Published:June 12, 2026
Updated:June 13, 2026
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.
Related Resources (3)
https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
https://nvd.nist.gov/vuln/detail/CVE-2026-46690
https://github.com/spearman/unbounded-spsc
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CVSS v4
Base Score:
5.8
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.8
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH
Weakness Type (CWE)
Incorrect Type Conversion or Cast
CWE-704
Out-of-bounds Write
CWE-787
Out-of-bounds Read
CWE-125
Double Free
CWE-415
EPSS
Base Score:
0.01