CVE-2026-74874

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-17. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-60093 (ENISA EUVD) · GHSA-844w-mwfp-wjwf (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

openssl_encrypt versions before 1.4.0 use Python's non-cryptographic random module for steganographic pixel selection in the generate_pseudorandom_sequence function. Attackers who know the password can recover the Mersenne Twister state from approximately 624 outputs and predict pixel locations containing hidden data for extraction.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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
0.4%
EPSS %ILE
37th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; 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 (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 17, 2026

Last Modified

October 8, 2026

Advisory Details (2)

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

openssl_encrypt before 1.4.0 Weak PRNG Steganography Pixel Selection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openssl-encrypt-before-weak-prng-steganography-pixel-selection
GitHub advisoryMentions a patch (unverified)

Non-cryptographic PRNG used for steganography pixel selection · Advisory · jahlives/openssl_encrypt · GitHub

https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-vfgx-5q85-58q3

Vendor Advisories for CVE-2026-74874(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 9× in last 7d / 57× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 234 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 134 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  4. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  5. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  6. 2026-10-27 20:02 UTCEG score recompute
  7. 2026-10-27 20:02 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  9. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  10. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  11. 2026-10-25 14:03 UTCEG score recompute
  12. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  16. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-10-20 08:23 UTCEG score recompute
  18. 2026-10-20 08:23 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-10-18 03:13 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
Show 75 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-13 07:27 UTCEG score recompute
  3. 2026-10-13 07:27 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-10-12 15:39 UTCEG score recompute
  6. 2026-10-11 19:25 UTCEG score recompute
  7. 2026-10-11 16:41 UTCEG score recompute
  8. 2026-10-11 14:00 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  13. 2026-10-08 16:37 UTCEG score recompute
  14. 2026-10-08 16:37 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-10-08 15:42 UTCEG score recompute
  16. 2026-10-08 15:42 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  18. 2026-10-07 11:28 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  19. 2026-10-06 21:53 UTCEG score recompute
  20. 2026-10-06 21:53 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  21. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  22. 2026-10-06 09:04 UTCEG score recompute
  23. 2026-10-06 09:04 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  25. 2026-10-05 09:38 UTCEG score recompute
  26. 2026-10-05 09:38 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  27. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  28. 2026-10-04 21:51 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  29. 2026-10-04 05:30 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  30. 2026-10-03 17:50 UTCEG score recompute
  31. 2026-10-03 17:50 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  32. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  33. 2026-10-03 03:26 UTCEG score recompute
  34. 2026-10-03 03:26 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  35. 2026-10-02 15:47 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  36. 2026-10-02 03:46 UTCEG score recompute
  37. 2026-10-02 03:46 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  39. 2026-10-01 15:30 UTCEG score recompute
  40. 2026-10-01 15:29 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  41. 2026-10-01 09:27 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-09-30 21:43 UTCEG score recompute
  43. 2026-09-30 21:43 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-09-30 10:04 UTCEG score recompute
  45. 2026-09-30 10:04 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  47. 2026-09-28 22:00 UTCEG score recompute
  48. 2026-09-28 22:00 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  50. 2026-09-28 10:10 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  51. 2026-09-27 22:23 UTCEG score recompute
  52. 2026-09-27 22:23 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  54. 2026-09-27 08:18 UTCEG score recompute
  55. 2026-09-27 08:18 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  56. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  57. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  58. 2026-09-25 02:12 UTCEG score recompute
  59. 2026-09-25 02:12 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  60. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  61. 2026-09-24 08:21 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-09-23 20:42 UTCEG score recompute
  63. 2026-09-23 20:42 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  64. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  65. 2026-09-23 09:04 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  66. 2026-09-22 21:25 UTCEG score recompute
  67. 2026-09-22 21:25 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  68. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  69. 2026-09-22 09:46 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  70. 2026-09-21 21:40 UTCEG score recompute
  71. 2026-09-21 21:40 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  73. 2026-09-21 10:01 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5
  74. 2026-09-20 22:22 UTCEG score recompute
  75. 2026-09-20 22:22 UTCGHSA enrichmentGHSA-844w-mwfp-wjwf · GitHub severity HIGH · GitHub CVSS 7.5

Frequently asked(5)

What is CVE-2026-74874?
CVE-2026-74874 is a high-severity vulnerability; its CVE record was published on August 17, 2026. openssl_encrypt versions before 1.4.0 use Python's non-cryptographic random module for steganographic pixel selection in the generate_pseudorandom_sequence function. Attackers who know the password can recover the Mersenne Twister state from approximately 624 outputs and predict pixel locations…
When was CVE-2026-74874 made public?
CVE-2026-74874 was made public on February 10, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 17, 2026. EchelonGraph's copy of the record carries a last-modified date of October 8, 2026; the record at its source may have been updated since.
Is CVE-2026-74874 actively exploited?
CVE-2026-74874 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74874?
CVE-2026-74874 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74874?
A fix for CVE-2026-74874 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74874 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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