Home/CVE/Versions of the package pubnub before 7.4.0; all versions of the package com.pubnub:pubnub; versions of the package pubn
CVE

CVE-2023-26154

Versions of the package pubnub before 7.4.0; all versions of the package com.pubnub:pubnub; versions of the package pubn

Versions of the package pubnub before 7.4.0.

all versions of the package com.pubnub:pubnub.

versions of the package pubnub before 6.19.0.

all versions of the package github.com/pubnub/go.

versions of the package github.com/pubnub/go/v7 before 7.2.0.

versions of the package pubnub before 7.3.0.

versions of the package pubnub/pubnub before 6.1.0.

versions of the package pubnub before 5.3.0.

versions of the package pubnub before 0.4.0.

versions of the package pubnub/c-core before 4.5.0.

versions of the package com.pubnub:pubnub-kotlin before 7.7.0.

versions of the package pubnub/swift before 6.2.0.

versions of the package pubnub before 5.2.0.

versions of the package pubnub before 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.

MEDIUM · CVSS 5.9 EPSS 0.00381
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0

Weakness Classification

Affected Products & Versions

11
pubnub< 0.4.0
pubnub< 7.2.0
pubnub>= 3.6.4 and < 4.3.0
pubnub>= 4.3.1 and < 5.2.0
pubnub>= 6.0.0 and < 6.1.0
pubnub>= 6.2.0 and < 6.19.0

Affected Packages

14
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/pubnub/go
Go github.com/pubnub/go/v5
Go github.com/pubnub/go/v6
Go github.com/pubnub/go/v7 fixed in 7.2.0
Maven com.pubnub:pubnub MODERATE
Maven com.pubnub:pubnub-kotlin MODERATE fixed in 7.7.0
NuGet Pubnub MODERATE fixed in 6.19.0
Packagist pubnub/pubnub MODERATE fixed in 6.1.0
Pub pubnub MODERATE fixed in 4.3.0
PyPI pubnub MODERATE fixed in 7.3.0
RubyGems pubnub MODERATE fixed in 5.3.0
SwiftURL github.com/pubnub/swift MODERATE fixed in 6.2.0
crates.io pubnub MODERATE fixed in 0.4.0
npm pubnub MODERATE fixed in 7.4.0

Public Exploits & PoCs

1

Scoring & Timeline

5.9
MEDIUM · CVSS v3.1 · report@snyk.io
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Dec 2023 · 05:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Advisories

1
suse-csafopenSUSE-SU-2025:15469-1
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin