CVE-2023-26154 describes an Insufficient Entropy vulnerability in various PubNub SDKs (including C-Core, Kotlin, Go, Swift, and JavaScript) affecting versions prior to specified updates. This flaw stems from an inefficient implementation of the AES-256-CBC cryptographic algorithm, where the getKey function and subsequent hex encoding and trimming lead to half of the encryption key bits being constant. The vulnerability has a CVSS score of 5.9 (Medium), indicating a network-based attack with high complexity (AC:H) that could lead to high confidentiality impact (C:H) if exploited. While exploitation requires significant attacker resources for brute-forcing, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.5.0CPE matchmatch criteria | cpe:2.3:a:pubnub:c-core:*:*:*:*:*:*:*:* | ||
< 7.7.0CPE matchmatch criteria | cpe:2.3:a:pubnub:kotlin:*:*:*:*:*:*:*:* | ||
< 0.4.0CPE matchmatch criteria | cpe:2.3:a:pubnub:pubnub:*:*:*:*:*:-:*:* | ||
< 7.2.0CPE matchmatch criteria | cpe:2.3:a:pubnub:pubnub:*:*:*:*:*:go:*:* | ||
>= 3.6.4, < 4.3.0CPE matchmatch criteria | cpe:2.3:a:pubnub:pubnub:*:*:*:*:*:-:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
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