CVE-2026-46690

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 27/100
Published: 2026-06-12 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

No Interaction

CVSS Vector Breakdown

AV: Local
AC: High
PR: Low
UI: None
S: Unchanged
C: Low
I: Low
A: High

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.

Weakness Classification (4)

Affected Software (1)

VendorProductVersion
spearman unbounded-spsc < 0.2.0

Bug Bounty Relevance

27 / 100
✓ No user interaction

CVSS Score

5.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H

EPSS — Exploitation Probability

0.13%
Raw Score 0.001300
Percentile 2.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00130
2026-10-28
0.00130

Intelligence Sources

nvd ref →