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CVE Vulnerability Details :
CVE-2026-46383
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-15 May, 2026 | 16:04
Updated At-15 May, 2026 | 17:49
Rejected At-
▼CVE Numbering Authority (CNA)
Microsoft APM: Windows absolute-path tar member overwrite during legacy-bundle probing in `apm install`

Microsoft APM is an open-source, community-driven dependency manager for AI agents. Prior to 0.13.0, Microsoft APM contains a Windows-specific archive extraction boundary failure in the legacy-bundle probe used by apm install <bundle> on supported Python 3.10 and 3.11 runtimes. When apm install is given a local .tar.gz that is not recognized as a plugin-format bundle, APM probes whether it is a legacy --format apm bundle. On Python versions earlier than 3.12, that probe extracts untrusted tar members with raw tar.extractall() without rejecting Windows absolute member names such as D:/.... This vulnerability is fixed in 0.13.0.

Affected Products
Vendor
Microsoft Corporationmicrosoft
Product
apm
Versions
Affected
  • < 0.13.0
Problem Types
TypeCWE IDDescription
CWECWE-22CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWECWE-73CWE-73: External Control of File Name or Path
Type: CWE
CWE ID: CWE-22
Description: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Type: CWE
CWE ID: CWE-73
Description: CWE-73: External Control of File Name or Path
Metrics
VersionBase scoreBase severityVector
3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/microsoft/apm/security/advisories/GHSA-mq5j-pw29-jcv3
x_refsource_CONFIRM
Hyperlink: https://github.com/microsoft/apm/security/advisories/GHSA-mq5j-pw29-jcv3
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/microsoft/apm/security/advisories/GHSA-mq5j-pw29-jcv3
exploit
Hyperlink: https://github.com/microsoft/apm/security/advisories/GHSA-mq5j-pw29-jcv3
Resource:
exploit
Details not found