IBM Db2 11.5.x /12.1.x Remote File Write via Improper Path Validation
CVE-2026-15955 Published on September 14, 2026
IBM® Data Server driver for JDBC and SQLJ could allow a remote attacker to perform an arbitrary file write due to improper validation of file paths
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow a remote attacker to perform an arbitrary file write due to improper validation of file paths.
Vulnerability Analysis
CVE-2026-15955 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on 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-2026-15955 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-15955
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Affected Versions
IBM Db2:- Version 11.5.0, <= 11.5.9 is affected.
- Version 12.1.0, <= 12.1.5 is affected.