What’s Vulnerable › Vulnerabilities

CVE-2026-103754: Ansible-runner: ansible-runner: path traversal and symlink escape in unstream_dir() allows file write outside the target directory

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-01 · updated 2026-10-01
• Weakness: CWE-22

Description

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.

Affected products

• Red Hat Ansible Automation Platform 2: all versions

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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