CVE-2026-74896

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-17. The CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-60115 (ENISA EUVD) · GHSA-xgx5-9hx8-gf84 (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
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).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in the DangerousPatternVisitor AST analyzer that fails to detect dunder attribute traversal techniques. Attackers can use __class__, __bases__, __subclasses__(), and __globals__ chains to access restricted functions and execute arbitrary system commands from plugin code.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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
0.6%
EPSS %ILE
46th
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 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, Track* at medium and Attend at high mission impact.

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

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 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 total (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 1, 2026

Advisory Details (2)

Auto-updated Oct 28, 2026
Patch available. Sources: github.
Web page

openssl_encrypt before 1.4.0 Sandbox Escape via Dunder Attribute Traversal | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openssl-encrypt-before-sandbox-escape-via-dunder-attribute-traversal
GitHub advisoryMentions a patch (unverified)

AST analyzer misses dunder attribute traversal sandbox escapes · Advisory · jahlives/openssl_encrypt · GitHub

https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-w7gr-9g4g-33mx

Vendor Advisories for CVE-2026-74896(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 21× in last 7d / 98× 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 432 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 332 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 15:37 UTCEG score recompute
  2. 2026-11-02 15:37 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  4. 2026-11-01 15:38 UTCEG score recompute
  5. 2026-11-01 15:37 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  7. 2026-10-31 15:38 UTCEG score recompute
  8. 2026-10-31 15:38 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  10. 2026-10-30 15:40 UTCEG score recompute
  11. 2026-10-30 15:40 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  13. 2026-10-29 15:42 UTCEG score recompute
  14. 2026-10-29 15:42 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  16. 2026-10-28 15:33 UTCEG score recompute
  17. 2026-10-28 15:33 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  19. 2026-10-27 15:35 UTCEG score recompute
  20. 2026-10-27 15:35 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  22. 2026-10-26 15:28 UTCEG score recompute
  23. 2026-10-26 15:28 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  25. 2026-10-25 14:51 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
Show 75 more
  1. 2026-10-25 14:03 UTCEG score recompute
  2. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  3. 2026-10-24 14:52 UTCEG score recompute
  4. 2026-10-24 14:52 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  6. 2026-10-23 14:53 UTCEG score recompute
  7. 2026-10-23 14:52 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  9. 2026-10-22 14:53 UTCEG score recompute
  10. 2026-10-22 14:52 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  12. 2026-10-21 14:51 UTCEG score recompute
  13. 2026-10-21 14:51 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  15. 2026-10-20 14:49 UTCEG score recompute
  16. 2026-10-20 14:49 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  18. 2026-10-19 14:14 UTCEG score recompute
  19. 2026-10-19 14:14 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  21. 2026-10-18 14:14 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-18 03:13 UTCEG score recompute
  23. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  24. 2026-10-17 14:15 UTCEG score recompute
  25. 2026-10-17 14:15 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  27. 2026-10-16 14:17 UTCEG score recompute
  28. 2026-10-16 14:16 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  29. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  30. 2026-10-15 14:15 UTCEG score recompute
  31. 2026-10-15 14:15 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  33. 2026-10-14 08:59 UTCEG score recompute
  34. 2026-10-14 08:59 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  35. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  36. 2026-10-13 05:37 UTCEG score recompute
  37. 2026-10-13 05:37 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  39. 2026-10-12 15:39 UTCEG score recompute
  40. 2026-10-12 05:37 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-11 19:25 UTCEG score recompute
  42. 2026-10-11 16:41 UTCEG score recompute
  43. 2026-10-11 14:00 UTCEG score recompute
  44. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  45. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  46. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  47. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  48. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  49. 2026-10-07 11:28 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-10-07 06:06 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  51. 2026-10-07 02:16 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-10-06 21:47 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-10-06 17:10 UTCEG score recompute
  54. 2026-10-06 17:10 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  56. 2026-10-06 12:58 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-10-06 09:04 UTCEG score recompute
  58. 2026-10-06 09:04 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  60. 2026-10-05 17:25 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  61. 2026-10-05 11:55 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-10-05 06:40 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  63. 2026-10-05 01:57 UTCEG score recompute
  64. 2026-10-05 01:57 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  66. 2026-10-04 21:50 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-10-04 16:25 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-10-04 11:45 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  69. 2026-10-04 07:03 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-10-04 03:14 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  71. 2026-10-03 21:39 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-10-03 17:50 UTCEG score recompute
  73. 2026-10-03 17:50 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8
  74. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  75. 2026-10-03 00:45 UTCGHSA enrichmentGHSA-xgx5-9hx8-gf84 · GitHub severity CRITICAL · GitHub CVSS 9.8

Frequently asked(5)

What is CVE-2026-74896?
CVE-2026-74896 is a critical-severity vulnerability; its CVE record was published on August 17, 2026. openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in the DangerousPatternVisitor AST analyzer that fails to detect dunder attribute traversal techniques. Attackers can use class, bases, __subclasses__(), and globals chains to access restricted functions and execute…
When was CVE-2026-74896 made public?
CVE-2026-74896 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 1, 2026; the record at its source may have been updated since.
Is CVE-2026-74896 actively exploited?
CVE-2026-74896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74896?
CVE-2026-74896 has a CVSS base score of 9.8 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-74896?
A fix for CVE-2026-74896 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74896 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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