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CVE

CVE-2025-64343

(conda) Constructor: Excessive permissions during and after installation
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CVE

CVE-2025-64343

(conda) Constructor: Excessive permissions during and after installation

(conda) Constructor is a tool that enables users to create installers for conda package collections. In versions 3.12.2 and below, the  installation directory inherits permissions from its parent directory. Outside of restricted directories, the permissions are very permissive and often allow write access by authenticated users. Any logged in user can make modifications during the installation for both single-user and all-user installations. This constitutes a local attack vector if the installation is in a directory local users have access to. For single-user installations in a shared directory, these permissions persist after the installation. This issue is fixed in version 3.13.0.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.8
-
3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64343.json, https://github.com/conda/constructor/commit/c368383710a7c2b81ad1b0ecb9724b38d3577447, https://github.com/conda/constructor/releases/tag/3.13.0, https://github.com/conda/constructor/security/advisories/GHSA-vvpr-2qg4-2mrq, https://nvd.nist.gov/vuln/detail/CVE-2025-64343

Severity

7.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.8
EPSS Probability
0.00013%
EPSS Percentile
0.01646%
Introduced Version
0
Fix Available
4cc113ef4f0f3d3390e9ac5fb05d26d8d5406ba1

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