CVE-2021-20423
Description
IBM Cloud Pak for Applications 4.3 could allow an authenticated user gain escalated privilesges due to improper application permissions. IBM X-Force ID: 196308.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
IBM Cloud Pak for Applications 4.3 contains an improper application permissions vulnerability that allows an authenticated user to gain escalated privileges.
Vulnerability
IBM Cloud Pak for Applications version 4.3 suffers from an improper application permissions vulnerability [1]. The software fails to properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control. This affects all deployments of version 4.3.
Exploitation
An authenticated user with low privileges can exploit this vulnerability by leveraging the improper permission checks to escalate their privileges [1]. The attack can be carried out over the network without user interaction, requiring only that the attacker has valid credentials.
Impact
Successful exploitation allows the attacker to gain elevated privileges, potentially leading to full compromise of confidentiality, integrity, and availability (CVSS base score 8.8) [1].
Mitigation
IBM has released version 4.3.1 of Cloud Pak for Applications, which corrects the permission handling [1]. No workarounds are available; users should upgrade to the fixed version.
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Range: =4.3
- IBM/Cloud Pak for Applicationsv5Range: 4.3
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- exchange.xforce.ibmcloud.com/vulnerabilities/196308mitrevdb-entryx_refsource_XF
- www.ibm.com/support/pages/node/6471329mitrex_refsource_CONFIRM
News mentions
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