IBM webMethods API GW 10.11-11.1 arbitrary file read via File:// /createapi
CVE-2026-2606 Published on March 3, 2026
IBM webMethods API Management fails to validate user input and enables unauthorized arbitrary file read
IBM webMethods API Gateway (on-prem) 10.11 through 10.11_Fix3210.15 to 10.15_Fix2711.1 to 11.1_Fix7 IBM webMethods API Management (on-prem) fails to properly validate user-supplied input passed to the url parameter on the /createapi endpoint. An attacker can modify this parameter to use a file:// URI schema instead of the expected https:// schema, enabling unauthorized arbitrary file read access on the underlying server file system.
Vulnerability Analysis
CVE-2026-2606 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-2606 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-2606
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Affected Versions
IBM webMethods API Gateway (on-prem):- Version 10.11, <= 10.11_Fix32 is affected.
- Version 10.15, <= 10.15_Fix27 is affected.
- Version 11.1, <= 11.1_Fix7 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.