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CVE Vulnerability Details :
CVE-2026-46690
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-12 Jun, 2026 | 14:56
Updated At-12 Jun, 2026 | 15:54
Rejected At-
▼CVE Numbering Authority (CNA)
unbounded-spsc: Sender::send pointer-as-value transmute causes OOB read and fake-Arc drop under TX/RX race

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.

Affected Products
Vendor
spearman
Product
unbounded-spsc
Versions
Affected
  • <= 0.2.0
Problem Types
TypeCWE IDDescription
CWECWE-125CWE-125: Out-of-bounds Read
CWECWE-415CWE-415: Double Free
CWECWE-704CWE-704: Incorrect Type Conversion or Cast
CWECWE-787CWE-787: Out-of-bounds Write
Type: CWE
CWE ID: CWE-125
Description: CWE-125: Out-of-bounds Read
Type: CWE
CWE ID: CWE-415
Description: CWE-415: Double Free
Type: CWE
CWE ID: CWE-704
Description: CWE-704: Incorrect Type Conversion or Cast
Type: CWE
CWE ID: CWE-787
Description: CWE-787: Out-of-bounds Write
Metrics
VersionBase scoreBase severityVector
3.15.8MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Version: 3.1
Base score: 5.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
x_refsource_CONFIRM
Hyperlink: https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
exploit
Hyperlink: https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
Resource:
exploit
Details not found