CVE-2021-20360
Description
IBM Cloud Pak for Applications 4.3 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 195031.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
IBM Cloud Pak for Applications 4.3 uses weak cryptographic algorithms allowing unsecured HTTP communications, enabling attackers to decrypt sensitive data.
Vulnerability
IBM Cloud Pak for Applications version 4.3 uses weaker than expected cryptographic algorithms, resulting in unsecured HTTP communications [1]. This vulnerability affects all versions of IBM Cloud Pak for Applications prior to 4.3.1 [1]. The product fails to enforce strong encryption for network traffic, exposing sensitive data in transit.
Exploitation
An attacker with network access can perform a man-in-the-middle attack to intercept and decrypt HTTP traffic between the application and its components [1]. The attack requires high complexity due to the need for precise network positioning, but no authentication or user interaction is needed (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) [1].
Impact
Successful exploitation allows the attacker to decrypt highly sensitive information transmitted over the network, leading to a high confidentiality impact [1]. Integrity and availability are not affected.
Mitigation
IBM released version 4.3.1 of Cloud Pak for Applications, which no longer exposes unsecured HTTP communications [1]. Users should upgrade to this version. No workarounds are available [1].
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/195031mitrevdb-entryx_refsource_XF
- www.ibm.com/support/pages/node/6471271mitrex_refsource_CONFIRM
News mentions
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