CVE-2026-74887

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.3% (20th 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
Trending — 3 sources updated this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

openssl_encrypt before 1.4.0 imports Python's non-cryptographic 'random' module (Mersenne Twister PRNG) at line 15 of openssl_encrypt/modules/pqc.py. No direct calls to random.* were present in the code, so no cryptographic operation is currently affected; however, the import creates a hazard that future code could inadvertently use random.randint() instead of a cryptographically secure alternative (secrets/os.urandom), producing predictable values since the Mersenne Twister state can be recovered from approximately 624 outputs. Fixed by removing the import in 1.4.0.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100CISA 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%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

August 17, 2026

Last Modified

October 1, 2026

Advisory Details (2)

Auto-updated Aug 17, 2026
Patch available. Sources: github.
generic

openssl_encrypt before 1.4.0 Insecure Random Import in PQC Module | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openssl-encrypt-before-insecure-random-import-in-pqc-module
github Patch Available

Non-cryptographic random module imported in PQC crypto module · Advisory · jahlives/openssl_encrypt · GitHub

https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-cx72-m6xj-3vf6

Vendor Advisories for CVE-2026-74887(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
openssl-encrypt0.2.2 ... 1.4.0b8 (44 versions)
  • every version up to 1.4.0: fixed in 1.4.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 73× 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 191 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 21:51 UTCGHSA enrichment
  3. 2026-10-03 17:50 UTCEG score recompute
  4. 2026-10-03 17:50 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 16:09 UTCEG score recompute
  7. 2026-10-02 16:09 UTCGHSA enrichment
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-10-01 15:29 UTCGHSA enrichment
  10. 2026-10-01 10:45 UTCEG score recompute
  11. 2026-10-01 10:45 UTCGHSA enrichment
  12. 2026-09-30 10:03 UTCEG score recompute
  13. 2026-09-30 10:03 UTCGHSA enrichment
  14. 2026-09-29 15:24 UTCEPSS rescore
  15. 2026-09-28 13:52 UTCEPSS rescore
  16. 2026-09-28 08:58 UTCEG score recompute
  17. 2026-09-28 08:58 UTCGHSA enrichment
  18. 2026-09-27 13:48 UTCEPSS rescore
  19. 2026-09-27 08:18 UTCEG score recompute
  20. 2026-09-27 08:18 UTCGHSA enrichment
  21. 2026-09-26 15:59 UTCEPSS rescore
  22. 2026-09-26 00:28 UTCEPSS rescore
  23. 2026-09-25 02:11 UTCEG score recompute
  24. 2026-09-25 02:11 UTCGHSA enrichment
  25. 2026-09-24 14:04 UTCEPSS rescore
Show 75 more
  1. 2026-09-23 21:21 UTCEG score recompute
  2. 2026-09-23 21:21 UTCGHSA enrichment
  3. 2026-09-23 17:54 UTCEPSS rescore
  4. 2026-09-22 20:42 UTCEG score recompute
  5. 2026-09-22 20:42 UTCGHSA enrichment
  6. 2026-09-22 16:01 UTCEPSS rescore
  7. 2026-09-21 21:09 UTCEPSS rescore
  8. 2026-09-21 16:19 UTCEG score recompute
  9. 2026-09-21 16:19 UTCGHSA enrichment
  10. 2026-09-20 20:16 UTCEPSS rescore
  11. 2026-09-20 15:28 UTCEG score recompute
  12. 2026-09-20 15:28 UTCGHSA enrichment
  13. 2026-09-19 14:38 UTCEG score recompute
  14. 2026-09-19 14:38 UTCGHSA enrichment
  15. 2026-09-18 19:28 UTCEPSS rescore
  16. 2026-09-18 13:58 UTCEG score recompute
  17. 2026-09-18 13:58 UTCGHSA enrichment
  18. 2026-09-17 13:14 UTCEG score recompute
  19. 2026-09-17 13:14 UTCGHSA enrichment
  20. 2026-09-16 14:08 UTCEPSS rescore
  21. 2026-09-16 12:25 UTCEG score recompute
  22. 2026-09-16 12:25 UTCGHSA enrichment
  23. 2026-09-16 05:15 UTCEPSS rescore
  24. 2026-09-15 11:45 UTCEG score recompute
  25. 2026-09-15 11:45 UTCGHSA enrichment
  26. 2026-09-15 03:12 UTCEPSS rescore
  27. 2026-09-14 10:08 UTCEG score recompute
  28. 2026-09-14 10:08 UTCGHSA enrichment
  29. 2026-09-13 09:05 UTCEG score recompute
  30. 2026-09-13 09:05 UTCGHSA enrichment
  31. 2026-09-12 15:02 UTCEPSS rescore
  32. 2026-09-12 08:25 UTCEG score recompute
  33. 2026-09-12 08:25 UTCGHSA enrichment
  34. 2026-09-11 14:53 UTCEPSS rescore
  35. 2026-09-11 07:44 UTCEG score recompute
  36. 2026-09-11 07:44 UTCGHSA enrichment
  37. 2026-09-10 09:35 UTCEPSS rescore
  38. 2026-09-10 07:03 UTCGHSA enrichment
  39. 2026-09-09 06:24 UTCEG score recompute
  40. 2026-09-09 06:24 UTCGHSA enrichment
  41. 2026-09-08 22:01 UTCEPSS rescore
  42. 2026-09-08 05:44 UTCEG score recompute
  43. 2026-09-08 05:44 UTCGHSA enrichment
  44. 2026-09-07 04:44 UTCEG score recompute
  45. 2026-09-07 04:44 UTCGHSA enrichment
  46. 2026-09-06 13:48 UTCEPSS rescore
  47. 2026-09-06 01:13 UTCEG score recompute
  48. 2026-09-06 01:13 UTCGHSA enrichment
  49. 2026-09-05 00:14 UTCEG score recompute
  50. 2026-09-05 00:14 UTCGHSA enrichment
  51. 2026-09-04 05:07 UTCEPSS rescore
  52. 2026-09-03 22:54 UTCGHSA enrichment
  53. 2026-09-02 22:11 UTCEG score recompute
  54. 2026-09-02 22:11 UTCGHSA enrichment
  55. 2026-09-02 14:12 UTCEPSS rescore
  56. 2026-09-01 16:43 UTCEG score recompute
  57. 2026-09-01 16:43 UTCGHSA enrichment
  58. 2026-09-01 13:54 UTCEPSS rescore
  59. 2026-09-01 04:40 UTCEPSS rescore
  60. 2026-09-01 04:40 UTCEPSS rescore
  61. 2026-08-31 16:01 UTCEG score recompute▲ 2.20
  62. 2026-08-31 16:01 UTCGHSA enrichment
  63. 2026-08-31 16:00 UTCNVD updateCVSS v3 → 5.9 · severity → MEDIUM
  64. 2026-08-31 15:14 UTCEG score recompute
  65. 2026-08-31 15:13 UTCGHSA enrichment
  66. 2026-08-30 19:18 UTCEPSS rescore
  67. 2026-08-30 19:17 UTCEPSS rescore
  68. 2026-08-30 01:22 UTCEPSS rescore
  69. 2026-08-28 21:42 UTCEPSS rescore
  70. 2026-08-28 20:56 UTCEG score recompute
  71. 2026-08-28 20:55 UTCGHSA enrichment
  72. 2026-08-28 19:55 UTCEG score recompute▼ 5.60
  73. 2026-08-28 19:54 UTCGHSA enrichment
  74. 2026-08-28 19:36 UTCMITRE cvelistV5CVSS v3 → 3.7 · CVSS v4 → 6.3 · severity → LOW
  75. 2026-08-28 12:10 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-74887?
CVE-2026-74887 is a medium vulnerability published on August 17, 2026. opensslencrypt before 1.4.0 imports Python's non-cryptographic 'random' module (Mersenne Twister PRNG) at line 15 of opensslencrypt/modules/pqc.py. No direct calls to random.* were present in the code, so no cryptographic operation is currently affected; however, the import creates a hazard that…
When was CVE-2026-74887 disclosed?
CVE-2026-74887 was first published on August 17, 2026, with the most recent update on October 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74887 actively exploited?
CVE-2026-74887 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74887?
CVE-2026-74887 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-74887?
A fix for CVE-2026-74887 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74887 are linked in the Vendor Advisories panel on this page.

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