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.
CVE-2023-26154
MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 40% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.9Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.9
- EG Score
- 5.9(medium)
- EPSS
- 57.2%
- KEV
- Not listed
Published
December 6, 2023
Last Modified
November 21, 2024
References (34)
- report@snykhttps://gist.github.com/vargad/20237094fce7a0a28f0723d7ce395bb0
- report@snykhttps://github.com/pubnub/javascript/blob/master/src/crypto/modules/web.js%23L70
- report@snykhttps://github.com/pubnub/javascript/commit/fb6cd0417cbb4ba87ea2d5d86a9c94774447e119
- report@snykhttps://security.snyk.io/vuln/SNYK-COCOAPODS-PUBNUB-6098384
- report@snykhttps://security.snyk.io/vuln/SNYK-DOTNET-PUBNUB-6098372
- report@snykhttps://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPUBNUBGO-6098373
- report@snykhttps://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPUBNUBGOV7-6098374
- report@snykhttps://security.snyk.io/vuln/SNYK-JAVA-COMPUBNUB-6098371
- report@snykhttps://security.snyk.io/vuln/SNYK-JAVA-COMPUBNUB-6098380
- report@snykhttps://security.snyk.io/vuln/SNYK-JS-PUBNUB-5840690
- report@snykhttps://security.snyk.io/vuln/SNYK-PHP-PUBNUBPUBNUB-6098376
- report@snykhttps://security.snyk.io/vuln/SNYK-PUB-PUBNUB-6098385
- report@snykhttps://security.snyk.io/vuln/SNYK-PYTHON-PUBNUB-6098375
- report@snykhttps://security.snyk.io/vuln/SNYK-RUBY-PUBNUB-6098377
- report@snykhttps://security.snyk.io/vuln/SNYK-RUST-PUBNUB-6098378
Affected Packages
(14 across 10 ecosystems)
Go(4)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/pubnub/go | — | 0.0.0-20231016150651-428517fef5b9 | — |
| github.com/pubnub/go/v5 | — | 5.0.4-0.20231016150651-428517fef5b9 | — |
| github.com/pubnub/go/v6 | — | 6.1.1-0.20231016150651-428517fef5b9 | — |
| github.com/pubnub/go/v7 | — | 7.2.0 | — |
Maven(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| com.pubnub:pubnub | 3.4 ... 4.6.5 (46 versions) | — | — |
| com.pubnub:pubnub-kotlin | 4.0.0 ... 7.6.0 (29 versions) | 7.7.0 | — |
crates.io(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pubnub | — | 0.4.0 | — |
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pubnub | — | 7.4.0 | — |
NuGet(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| Pubnub | 3.0.0 ... 6.9.0 (175 versions) | 6.19.0 | — |
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pubnub/pubnub | 3.5 ... v3.7.9 (43 versions) | 6.1.0 | — |
pub.dev(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pubnub | 0.1.0 ... 4.2.4 (39 versions) | 4.3.0 | — |
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pubnub | 3.3 ... 7.2.0 (88 versions) | 7.3.0 | — |
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pubnub | 0.1.10 ... 5.2.2 (94 versions) | 5.3.0 | — |
Swift(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/pubnub/swift | — | 6.2.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-09 19:08 UTCEPSS rescore
- 2026-07-09 19:08 UTCEPSS rescore
- 2026-07-08 15:13 UTCEPSS rescore
- 2026-07-07 13:44 UTCEPSS rescore
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-05 02:28 UTCEPSS rescore
- 2026-07-04 06:29 UTCEPSS rescore
- 2026-07-02 16:59 UTCEPSS rescore
- 2026-07-01 15:04 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-28 14:06 UTCEPSS rescore
- 2026-06-28 14:06 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-27 03:04 UTCOSV refresh
- 2026-06-25 13:48 UTCEPSS rescore
- 2026-06-25 13:48 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
Show 58 moreShow fewer
- 2026-06-22 14:24 UTCEPSS rescore
- 2026-06-22 14:24 UTCEPSS rescore
- 2026-06-21 14:55 UTCEPSS rescore
- 2026-06-21 14:55 UTCEPSS rescore
- 2026-06-21 01:58 UTCEPSS rescore
- 2026-06-21 01:58 UTCEPSS rescore
- 2026-06-19 19:24 UTCEPSS rescore
- 2026-06-19 19:24 UTCEPSS rescore
- 2026-06-18 17:51 UTCEPSS rescore
- 2026-06-18 17:51 UTCEPSS rescore
- 2026-06-17 17:51 UTCEPSS rescore
- 2026-06-17 17:51 UTCEPSS rescore
- 2026-06-16 17:51 UTCEPSS rescore
- 2026-06-16 17:51 UTCEPSS rescore
- 2026-06-15 17:47 UTCEPSS rescore
- 2026-06-14 23:16 UTCEPSS rescore
- 2026-06-13 22:59 UTCEPSS rescore
- 2026-06-13 22:59 UTCEPSS rescore
- 2026-06-12 23:10 UTCEPSS rescore
- 2026-06-11 13:59 UTCEPSS rescore
- 2026-06-10 22:17 UTCEPSS rescore
- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-09 13:17 UTCOSV refresh
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
- 2026-06-01 13:50 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 00:15 UTCEPSS rescore
- 2026-05-31 00:15 UTCEPSS rescore
- 2026-05-29 13:43 UTCEPSS rescore
- 2026-05-29 13:43 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-24 12:42 UTCEG score recompute
Frequently asked(5)
What is CVE-2023-26154?
CVE-2023-26154 is a medium vulnerability published on December 6, 2023. 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;…
When was CVE-2023-26154 disclosed?
CVE-2023-26154 was first published in the National Vulnerability Database on December 6, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-26154 actively exploited?
CVE-2023-26154 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-26154?
CVE-2023-26154 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2023-26154?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-26154, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-26154
Is Your Infrastructure Affected by CVE-2023-26154?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.