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Vulnerability Details :

CVE-2026-46690

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-12 Jun, 2026 | 14:56
Updated At-12 Jun, 2026 | 15:54
Rejected At-
Credits

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
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
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:12 Jun, 2026 | 16:16
Updated At:12 Jun, 2026 | 17:16

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.8MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Type: Secondary
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
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-125Secondarysecurity-advisories@github.com
CWE-415Secondarysecurity-advisories@github.com
CWE-704Secondarysecurity-advisories@github.com
CWE-787Secondarysecurity-advisories@github.com
CWE ID: CWE-125
Type: Secondary
Source: security-advisories@github.com
CWE ID: CWE-415
Type: Secondary
Source: security-advisories@github.com
CWE ID: CWE-704
Type: Secondary
Source: security-advisories@github.com
CWE ID: CWE-787
Type: Secondary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6security-advisories@github.com
N/A
https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
Hyperlink: https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
Source: security-advisories@github.com
Resource: N/A
Hyperlink: https://github.com/spearman/unbounded-spsc/security/advisories/GHSA-6m57-8r3p-pqx6
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

1Records found

CVE-2026-24201
Matching Score-4
Assigner-NVIDIA Corporation
ShareView Details
Matching Score-4
Assigner-NVIDIA Corporation
CVSS Score-5.8||MEDIUM
EPSS-0.01% / 2.16%
||
7 Day CHG~0.00%
Published-26 May, 2026 | 17:25
Updated-27 May, 2026 | 15:47
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

NVIDIA vGPU software contains a vulnerability in the virtual GPU manager, where an attacker could cause an out-of-bound access. A successful exploit of this vulnerability might lead to data tampering, denial of service, or information disclosure.

Action-Not Available
Vendor-NVIDIA Corporation
Product-Virtual GPU Manager
CWE ID-CWE-787
Out-of-bounds Write
Details not found