CVE-2026-103754

A flaw was found in ansible-runner. The unstream_dir() function, which receives and extracts a streamed zip archive on the worker side of the ansible-runner transmit/worker protocol, re-creates symbolic links from archive content without validating the link target and applies chmod() and utime() to an unsanitized filesystem path derived from the archive member name. A crafted archive processed by a worker that consumes attacker-influenced input can create files, create symbolic links, or change permissions outside the intended target directory, which can be leveraged toward code execution.

CVSS 3.1

5.9CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

EPSS

0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-10-01

Modified

2026-10-01

Record from

the NVD, synced 2026-10-19

References

• https://access.redhat.com/security/cve/CVE-2026-103754
• https://bugzilla.redhat.com/show_bug.cgi?id=2544510
• https://github.com/ansible/ansible-runner/pull/1550

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