IBM Db2 11.5.0-11.5.9/12.1.0-12.1.5 Auth File Write via Crafted Req
CVE-2026-86087 Published on September 10, 2026
IBM® Db2® could allow an authenticated user to send a specially crafted request to write arbitrary files on the system
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow an authenticated user to send a specially crafted request to write arbitrary files on the system.
Vulnerability Analysis
CVE-2026-86087 can be exploited 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 no impact on confidentiality, with no 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-2026-86087 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-86087
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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.