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CVE-2026-53940— Conda: Entry-point path traversal in noarch:python install (arbitrary file write) — canonical Python implementation

一分钟漏洞结论

影响对象
conda conda
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Conda is a system-level binary package and environment manager that runs on major operating systems and platforms. Prior to 26.5.2, parse_entry_point_def in conda/common/path/python.py accepted an unvalidated entry-point command from a noarch:python package's

CVSS 8.8 · High EPSS 0.42% · P36

影响版本矩阵 1

厂商产品 版本范围状态
conda conda < 26.5.2 affected
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一、 漏洞 CVE-2026-53940 基础信息

漏洞信息

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Vulnerability Title
Conda: Entry-point path traversal in noarch:python install (arbitrary file write) — canonical Python implementation
来源: CVE Program / CVE List V5
Vulnerability Description
Conda is a system-level binary package and environment manager that runs on major operating systems and platforms. Prior to 26.5.2, parse_entry_point_def in conda/common/path/python.py accepted an unvalidated entry-point command from a noarch:python package's info/link.json metadata. CreatePythonEntryPointAction in conda/core/path_actions.py interpolated that command into target_short_path, and PrefixPathAction.target_full_path joined it to the installation prefix without verifying that the result remained under the intended bin or Scripts directory. create_python_entry_point in conda/gateways/disk/create.py then wrote an executable wrapper to the resulting path. A malicious package could use path separators, traversal segments, or an absolute command path to write outside the prefix or overwrite another in-prefix entry point during default install and environment transactions. Out-of-prefix writes require the target parent directory to exist, while an overwritten entry point can execute attacker-controlled Python when later invoked with the installing user's privileges. This issue is fixed in version 26.5.2.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
conda conda < 26.5.2 -

二、漏洞 CVE-2026-53940 的公开POC

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三、漏洞 CVE-2026-53940 的情报信息

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CVE-2026-53940 补丁与修复 (2)

CVE-2026-53940 其他参考 (2)

IV. Related Vulnerabilities

Same vendor: conda
Same weakness: CWE-22

V. Comments for CVE-2026-53940

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