Description
Conda-build contains commands and tools to build conda packages. Prior to version 25.4.0, the conda-build processing logic is vulnerable to path traversal (Tarslip) attacks due to improper sanitization of tar entry paths. Attackers can craft tar archives containing entries with directory traversal sequences to write files outside the intended extraction directory. This could lead to arbitrary file overwrites, privilege escalation, or code execution if sensitive locations are targeted. This issue has been patched in version 25.4.0.
References (4)
Core 4
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/conda/conda-build/security/advisories/GHSA-h499-pxgj-qh5h
Patch x_refsource_misc
https://github.com/conda/conda-build/commit/bdf5e0022cec9a0c1378cca3f2dc8c92b4834673
Scores
CVSS v3
9.8
EPSS
0.0141
EPSS Percentile
80.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (1)
anaconda/conda-build
< 25.4.0
Published
Jun 16, 2025
Tracked Since
Feb 18, 2026