Ansible is widely used for IT automation; this flaw allows crafted collections to overwrite files and achieve code execution on control nodes, risking operational disruption.
CVE-2026-89091
Ansible collection installer symlink traversal allows file overwrite and RCE.
Is CVE-2026-89091 being exploited?
Not confirmed. CVE-2026-89091 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.48% probability of exploitation in the next 30 days.
How severe is CVE-2026-89091?
CVE-2026-89091 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-89091?
Not known from our data. No patch reference has been recorded for CVE-2026-89091, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-89091 affect?
CVE-2026-89091 affects ansible-core, ansible-galaxy, Ansible control nodes, Ansible collections (tarballs). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-89091?
Do not install untrusted collections; audit recent installs and apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
A malicious collection can overwrite arbitrary files as the ansible-galaxy user, enabling code execution on Ansible control nodes.
Immediate action required