Is CVE-2026-114109 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-114109 being exploited in the wild.

How severe is CVE-2026-114109?

High severity, with a CVSS score of 8.8, published 21 October 2026.

Is there a fix for CVE-2026-114109?

Yes: fixed in uv 0.11.15. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-114109 attacked?

It is attacked over the network.

Am I affected by CVE-2026-114109?

Check whether you run Astral Uv at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-114109: Astral uv path traversal via entry point names

CVE-2026-114109 · Severity: high · CVSS 8.8 · Published 2026-10-21

uv is a Python package installer and resolver used to manage project dependencies. A path traversal vulnerability in uv before version 0.11.15 allows malicious packages to write executable files outside their intended scripts directory, potentially placing them in system PATH directories to shadow or overwrite legitimate binaries. An attacker can exploit this by tricking users into installing a specially crafted malicious wheel, gaining code execution with the privileges of the user running uv.

Technologies: Astral Uv. Vendors: Astral.

Quick answers

Is CVE-2026-114109 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-114109 being exploited in the wild.
How severe is CVE-2026-114109?: High severity, with a CVSS score of 8.8, published 21 October 2026.
Which products and versions are affected?: Astral Uv before 0.11.15.
Is there a fix for CVE-2026-114109?: Yes: fixed in uv 0.11.15. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-114109 attacked?: It is attacked over the network.
Am I affected by CVE-2026-114109?: Check whether you run Astral Uv at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: uv 0.11.15

Technical details

The vulnerability exists in uv's handling of console_scripts and gui_scripts entry point names during wheel installation. An attacker can craft entry point names containing path traversal sequences (e.g., "../") that cause uv to place generated executables outside the environment's scripts directory. The flaw allows writing to arbitrary locations on the filesystem, including directories already present in the user's PATH, without requiring prior authentication or special network conditions. A fix is available in uv 0.11.15 and later.

Affected products

Astral uv before 0.11.15

Timeline

2026-05-18: disclosed
2026-05-18: patched: uv 0.11.15 released
2026-10-21: advisory

References

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