CVE-2023-26154

Vulnerability Summary

Versions of the package pubnub prior to 7.4.0; all versions of the package com.pubnub:pubnub; versions of the package pubnub prior to 6.19.0; all versions of the package github.com/pubnub/go; versions of the package github.com/pubnub/go/v7 prior to 7.2.0; versions of the package pubnub prior to 7.3.0; versions of the package pubnub/pubnub prior to 6.1.0; versions of the package pubnub prior to 5.3.0; versions of the package pubnub prior to 0.4.0; versions of the package pubnub/c-core prior to 4.5.0; versions of the package com.pubnub:pubnub-kotlin prior to 7.7.0; versions of the package pubnub/swift prior to 6.2.0; versions of the package pubnub prior to 5.2.0; versions of the package pubnub prior to 4.3.0 are vulnerable to Insufficient Entropy via the getKey function, due to inefficient implementation of the AES-256-CBC cryptographic algorithm. The provided encrypt function is less secure when hex encoding and trimming are applied, leaving half of the bits in the key always the same for every encoded message or file. **Note:** In order to exploit this vulnerability, the attacker needs to invest resources in preparing the attack and brute-force the encryption.

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