CVE-2023-26154

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 1.0% (60th percentile of EPSS-scored CVEs). 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
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 5.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity59% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.0%
EPSS %ILE
60th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

December 6, 2023

Last Modified

November 21, 2024

References (34)

Affected Packages

(14 across 10 ecosystems)
Go(4)
PackageVulnerable rangeFix by version rangeDependents
github.com/pubnub/go—
  • every version up to 0.0.0-20231016150651-428517fef5b9: fixed in 0.0.0-20231016150651-428517fef5b9
  • every version on: no fix on record
—
github.com/pubnub/go/v5—
  • every version up to 5.0.4-0.20231016150651-428517fef5b9: fixed in 5.0.4-0.20231016150651-428517fef5b9
  • every version on: no fix on record
—
github.com/pubnub/go/v6—
  • every version up to 6.1.1-0.20231016150651-428517fef5b9: fixed in 6.1.1-0.20231016150651-428517fef5b9
  • every version on: no fix on record
—
github.com/pubnub/go/v7—
  • every version up to 7.2.0: fixed in 7.2.0
—
Maven(2)
PackageVulnerable rangeFix by version rangeDependents
com.pubnub:pubnub3.4 ... 4.6.5 (46 versions)
  • every version through 4.6.5: no fix on record
—
com.pubnub:pubnub-kotlin4.0.0 ... 7.6.0 (29 versions)
  • every version up to 7.7.0: fixed in 7.7.0
—
crates.io(1)
PackageVulnerable rangeFix by version rangeDependents
pubnub—
  • every version up to 0.4.0: fixed in 0.4.0
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
pubnub—
  • every version up to 7.4.0: fixed in 7.4.0
—
NuGet(1)
PackageVulnerable rangeFix by version rangeDependents
Pubnub3.0.0 ... 6.9.0 (175 versions)
  • every version up to 6.19.0: fixed in 6.19.0
—
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
pubnub/pubnub3.5 ... v3.7.9 (43 versions)
  • every version up to 6.1.0: fixed in 6.1.0
—
pub.dev(1)
PackageVulnerable rangeFix by version rangeDependents
pubnub0.1.0 ... 4.2.4 (39 versions)
  • every version up to 4.3.0: fixed in 4.3.0
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
pubnub3.3 ... 7.2.0 (88 versions)
  • every version up to 7.3.0: fixed in 7.3.0
—
RubyGems(1)
PackageVulnerable rangeFix by version rangeDependents
pubnub0.1.10 ... 5.2.2 (94 versions)
  • every version up to 5.3.0: fixed in 5.3.0
—
Swift(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/pubnub/swift—6.2.0 (one range)—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 25× 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.

Showing the most recent 100 of 188 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:06 UTCEPSS rescore
  3. 2026-10-07 23:45 UTCEPSS rescore
  4. 2026-10-06 15:15 UTCEPSS rescore
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  6. 2026-10-04 23:20 UTCEPSS rescore
  7. 2026-10-03 14:23 UTCEPSS rescore
  8. 2026-10-02 16:23 UTCEPSS rescore
  9. 2026-10-01 19:47 UTCEPSS rescore
  10. 2026-09-30 16:19 UTCEG score recompute
  11. 2026-09-30 15:01 UTCEPSS rescore
  12. 2026-09-29 15:16 UTCEPSS rescore
  13. 2026-09-28 13:49 UTCEPSS rescore
  14. 2026-09-27 13:42 UTCEPSS rescore
  15. 2026-09-26 00:22 UTCEPSS rescore
  16. 2026-09-24 14:01 UTCEPSS rescore
  17. 2026-09-23 13:45 UTCEPSS rescore
  18. 2026-09-22 14:52 UTCOSV refresh
  19. 2026-09-22 14:45 UTCEPSS rescore
  20. 2026-09-20 20:14 UTCEPSS rescore
  21. 2026-09-16 14:05 UTCEPSS rescore
  22. 2026-09-13 16:44 UTCEPSS rescore
  23. 2026-09-12 14:58 UTCEPSS rescore
  24. 2026-09-11 14:50 UTCEPSS rescore
  25. 2026-09-11 09:34 UTCEPSS rescore
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  1. 2026-09-08 21:57 UTCEPSS rescore
  2. 2026-09-07 15:59 UTCEPSS rescore
  3. 2026-09-06 13:45 UTCEPSS rescore
  4. 2026-09-05 15:25 UTCEPSS rescore
  5. 2026-09-04 13:58 UTCEPSS rescore
  6. 2026-09-04 05:04 UTCEPSS rescore
  7. 2026-09-03 11:59 UTCOSV refresh
  8. 2026-09-02 14:09 UTCEPSS rescore
  9. 2026-09-01 13:51 UTCEPSS rescore
  10. 2026-08-30 19:15 UTCEPSS rescore
  11. 2026-08-30 01:19 UTCEPSS rescore
  12. 2026-08-28 21:38 UTCEPSS rescore
  13. 2026-08-27 14:23 UTCEPSS rescore
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  18. 2026-08-21 23:46 UTCEPSS rescore
  19. 2026-08-20 22:53 UTCEPSS rescore
  20. 2026-08-19 17:02 UTCEPSS rescore
  21. 2026-08-18 13:46 UTCEPSS rescore
  22. 2026-08-17 13:44 UTCEPSS rescore
  23. 2026-08-17 01:18 UTCOSV refresh
  24. 2026-08-16 14:53 UTCEPSS rescore
  25. 2026-08-16 02:12 UTCEPSS rescore
  26. 2026-08-15 01:28 UTCEPSS rescore
  27. 2026-08-13 21:58 UTCEPSS rescore
  28. 2026-08-12 13:48 UTCEPSS rescore
  29. 2026-08-11 13:39 UTCEPSS rescore
  30. 2026-08-09 13:44 UTCEPSS rescore
  31. 2026-08-08 16:34 UTCEPSS rescore
  32. 2026-08-07 16:24 UTCEPSS rescore
  33. 2026-08-06 13:44 UTCEPSS rescore
  34. 2026-08-05 19:15 UTCEPSS rescore
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  36. 2026-08-04 15:07 UTCEPSS rescore
  37. 2026-08-04 10:35 UTCEPSS rescore
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  39. 2026-08-02 02:25 UTCEPSS rescore
  40. 2026-08-02 02:24 UTCEPSS rescore
  41. 2026-08-01 19:06 UTCOSV refresh
  42. 2026-08-01 04:13 UTCEPSS rescore
  43. 2026-08-01 04:13 UTCEPSS rescore
  44. 2026-07-30 16:26 UTCEPSS rescore
  45. 2026-07-30 16:26 UTCEPSS rescore
  46. 2026-07-30 01:28 UTCEPSS rescore
  47. 2026-07-30 01:28 UTCEPSS rescore
  48. 2026-07-28 15:34 UTCEPSS rescore
  49. 2026-07-28 15:34 UTCEPSS rescore
  50. 2026-07-27 14:10 UTCEPSS rescore
  51. 2026-07-26 14:52 UTCEPSS rescore
  52. 2026-07-26 14:52 UTCEPSS rescore
  53. 2026-07-25 14:16 UTCEPSS rescore
  54. 2026-07-24 14:15 UTCEPSS rescore
  55. 2026-07-23 14:16 UTCEPSS rescore
  56. 2026-07-23 14:16 UTCEPSS rescore
  57. 2026-07-23 02:20 UTCEG score recompute
  58. 2026-07-22 23:08 UTCEG score recompute
  59. 2026-07-22 14:06 UTCEPSS rescore
  60. 2026-07-22 14:06 UTCEPSS rescore
  61. 2026-07-21 15:23 UTCEPSS rescore
  62. 2026-07-20 17:06 UTCEPSS rescore
  63. 2026-07-19 14:29 UTCEPSS rescore
  64. 2026-07-19 14:29 UTCEPSS rescore
  65. 2026-07-19 02:27 UTCEPSS rescore
  66. 2026-07-19 02:27 UTCEPSS rescore
  67. 2026-07-18 10:03 UTCEPSS rescore
  68. 2026-07-18 10:03 UTCEPSS rescore
  69. 2026-07-16 17:01 UTCEPSS rescore
  70. 2026-07-16 17:01 UTCEPSS rescore
  71. 2026-07-15 16:56 UTCEPSS rescore
  72. 2026-07-15 16:56 UTCEPSS rescore
  73. 2026-07-15 02:10 UTCOSV refresh
  74. 2026-07-15 01:58 UTCEPSS rescore
  75. 2026-07-15 01:58 UTCEPSS rescore

Related CVEs(same CWE)

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 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 1.0% probability of exploitation in the next 30 days (60th percentile of EPSS-scored CVEs).
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?
A fix for CVE-2023-26154 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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