Directory Traversal in Adobe ColdFusion (CVE‑2026‑27305) Exposes Sensitive Files
What It Is — Adobe ColdFusion’s fetchCFSettingFile method fails to validate user‑supplied path parameters, allowing a remote attacker to traverse directories and read arbitrary files on the server. The flaw is unauthenticated and does not require user interaction.
Exploitability — No public exploit code has been released, but the vulnerability is trivially exploitable with a crafted HTTP request. CVSS 3.1 base score 7.5 (High).
Affected Products — Adobe ColdFusion (all supported versions prior to the April 2026 security update).
TPRM Impact — Organizations that rely on ColdFusion‑based web applications or host third‑party services built on ColdFusion face potential exposure of configuration files, credentials, and internal code, creating a supply‑chain foothold for further attacks.
Recommended Actions
- Apply Adobe’s security update (APS‑B26‑38) immediately.
- Verify that the patch is successfully deployed across all ColdFusion instances.
- Conduct a file‑system audit to confirm no sensitive files have been accessed.
- Review third‑party contracts that include ColdFusion components and require vendors to confirm remediation.
- Update incident‑response playbooks to include directory‑traversal detection rules.