High severity7.5NVD Advisory· Published Feb 18, 2021· Updated Jun 17, 2026
CVE-2021-20354
CVE-2021-20354
Description
IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 194883.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*range: >=8.0.0.0,<=8.0.0.15
- (no CPE)range: 8.0, 8.5, and 9.0
- (no CPE)range: 8.0
Patches
Vulnerability mechanics
References
2- www.ibm.com/support/pages/node/6415959nvdPatchVendor Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/194883nvdVDB EntryVendor Advisory
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