InfoSphere Optim Test Data Fabrication (1.0.2.5) — CraftedSignal Threat Feedhttps://feed.craftedsignal.io/products/infosphere-optim-test-data-fabrication-1.0.2.5/Trending threats, MITRE ATT&CK coverage, and detection metadata. Fed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioWed, 27 May 2026 14:19:36 +0000CVE-2026-3366 — IBM InfoSphere Optim Test Data Fabrication Path Traversalhttps://feed.craftedsignal.io/briefs/2026-05-cve-2026-3366-path-traversal/Wed, 27 May 2026 14:19:36 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-05-cve-2026-3366-path-traversal/IBM InfoSphere Optim Test Data Fabrication versions 1.0.0 through 1.0.2.7 are susceptible to a path traversal vulnerability (CVE-2026-3366), allowing a remote attacker to send a specially crafted URL request containing 'dot dot' sequences (/../) to view arbitrary files on the system.CVE-2026-3366 describes a path traversal vulnerability affecting IBM InfoSphere Optim Test Data Fabrication. The vulnerability resides in versions 1.0.0, 1.0.0.1, 1.0.0.2, 1.0.2, 1.0.2.2, 1.0.2.3, 1.0.2.4, 1.0.2.5, 1.0.2.6, and 1.0.2.7. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted URL request containing “dot dot” sequences (/../). This allows the attacker to bypass intended restrictions and access arbitrary files on the system hosting the application. Successful exploitation allows the attacker to read sensitive files.

Attack Chain

  1. The attacker identifies an IBM InfoSphere Optim Test Data Fabrication server running a vulnerable version.
  2. The attacker crafts a malicious HTTP GET or POST request targeting a specific endpoint.
  3. The crafted request includes a URL containing “dot dot” sequences (/../) to traverse directories. For example /../../../../etc/passwd.
  4. The application fails to properly sanitize or validate the requested path.
  5. The application resolves the path, potentially escaping the intended webroot.
  6. The server reads the arbitrary file specified in the crafted path.
  7. The server sends the contents of the file back to the attacker in the HTTP response.

Impact

Successful exploitation of this path traversal vulnerability (CVE-2026-3366) enables a remote, unauthenticated attacker to read arbitrary files on the affected system. This could lead to the exposure of sensitive information such as configuration files, credentials, or other confidential data. There is no information about the number of victims or targeted sectors.

Recommendation

  • Apply the security patch or upgrade to a non-vulnerable version of IBM InfoSphere Optim Test Data Fabrication as recommended by IBM to remediate CVE-2026-3366.
  • Deploy the Sigma rule Detect CVE-2026-3366 Path Traversal Attempt to identify exploitation attempts in web server logs.
  • Monitor web server logs for requests containing “dot dot” sequences (/../) in the URL, especially requests targeting sensitive file paths.
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