CVE-2026-96756

HIGHPre-NVD 8.18.1
EchelonGraph scoreMEDIUM confidence

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

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-23. A secondary CVSS source baseline 8.1; 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-2026-85406 (ENISA EUVD) · GHSA-j4vv-v4c9-8599 (GitHub Security Advisories)Source: ENISA EUVD

8.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

orval versions before 8.30.0 contain a code injection vulnerability in the @orval/core factory generator that fails to escape date default values in new Date() calls. Attackers can inject arbitrary expressions through apostrophes in OpenAPI schema defaults to execute code with the privileges of the consumer process when factoryMethods and useDates options are enabled.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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)
Severity81% × 45%
Impact severity (EG Severity): CVSS 8.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.9% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.9%
EPSS %ILE
59th
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 (8.1): severity, escalated by confirmed exploitation. This CVE's 8.1 is its impact severity (EG Severity), not escalated.

EG Severity
8.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.9% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). 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; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade 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; Track* at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable no (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (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

September 23, 2026

Last Modified

September 23, 2026

Advisory Details (6)

Auto-updated Sep 23, 2026
Patch available. Sources: github_commit, github, github_pr.
Web page

orval before 8.30.0 Code Injection via Factory Generation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/orval-before-8.30.0-code-injection-via-factory-generation
Web page

GitHub - orval-labs/orval: orval is able to generate client with appropriate type-signatures (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification, either in yaml or json formats. 🍺 · GitHub

https://github.com/orval-labs/orval
Web page

orval/packages/core/src/generators/factory.ts at v8.29.0 · orval-labs/orval · GitHub

https://github.com/orval-labs/orval/blob/v8.29.0/packages/core/src/generators/factory.ts#L493
GitHub commit Patch Available

commit b9b083576943 (orval-labs/orval)

Patch available: orval-labs/orval v8.30.0 (contains commit b9b083576943)

https://github.com/orval-labs/orval/commit/b9b083576943c683540200eb957feced57dddc1a
GitHub pull request Patch Available

fix: escape date defaults in generated factories (GHSA-wx66-36r6-v5g7)

Patch available: orval-labs/orval v8.30.0 (PR #4038 merged 2026-09-07)

https://github.com/orval-labs/orval/pull/4038
GitHub advisoryMentions a patch (unverified)

Code injection through date defaults in generated factory methods · Advisory · orval-labs/orval · GitHub

https://github.com/orval-labs/orval/security/advisories/GHSA-wx66-36r6-v5g7

Vendor Advisories for CVE-2026-96756(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 67× 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 97 of 111 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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 14 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  2. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  3. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  4. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  5. 2026-10-30 13:23 UTCEG score recompute
  6. 2026-10-30 13:23 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  7. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  8. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  9. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  10. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  11. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  12. 2026-10-25 13:48 UTCEG score recompute
  13. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-10-23 18:35 UTCEG score recompute
  15. 2026-10-23 18:35 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  16. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  18. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-10-20 06:41 UTCEG score recompute
  21. 2026-10-20 06:41 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  22. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-10-18 02:57 UTCEG score recompute
  25. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
Show 72 more
  1. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  5. 2026-10-13 04:06 UTCEG score recompute
  6. 2026-10-13 04:06 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  7. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  8. 2026-10-12 14:40 UTCEG score recompute
  9. 2026-10-12 03:50 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  10. 2026-10-11 19:11 UTCEG score recompute
  11. 2026-10-11 16:27 UTCEG score recompute
  12. 2026-10-11 14:39 UTCEG score recompute
  13. 2026-10-11 14:39 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  14. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  15. 2026-10-11 13:39 UTCEG score recompute
  16. 2026-10-11 01:29 UTCEG score recompute
  17. 2026-10-11 01:29 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  19. 2026-10-10 11:42 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  20. 2026-10-09 22:32 UTCEG score recompute
  21. 2026-10-09 22:31 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  22. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-10-09 09:21 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  24. 2026-10-08 20:10 UTCEG score recompute
  25. 2026-10-08 20:10 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  26. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  27. 2026-10-08 06:55 UTCEG score recompute
  28. 2026-10-08 06:55 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  29. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  30. 2026-10-07 17:45 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  31. 2026-10-07 03:53 UTCEG score recompute
  32. 2026-10-07 03:53 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  33. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  34. 2026-10-06 14:43 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  35. 2026-10-06 01:33 UTCEG score recompute
  36. 2026-10-06 01:33 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  37. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  38. 2026-10-05 12:07 UTCEG score recompute
  39. 2026-10-05 12:07 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  40. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  41. 2026-10-04 22:57 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  42. 2026-10-04 09:47 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  43. 2026-10-03 20:35 UTCEG score recompute
  44. 2026-10-03 20:34 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  45. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  46. 2026-10-03 07:23 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  47. 2026-10-02 18:12 UTCEG score recompute
  48. 2026-10-02 18:12 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  49. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  50. 2026-10-02 04:59 UTCEG score recompute
  51. 2026-10-02 04:59 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  52. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  53. 2026-10-01 15:45 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  54. 2026-10-01 02:35 UTCEG score recompute
  55. 2026-10-01 02:35 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  56. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  57. 2026-09-30 13:25 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  58. 2026-09-30 00:13 UTCEG score recompute
  59. 2026-09-30 00:13 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  60. 2026-09-29 08:33 UTCEG score recompute
  61. 2026-09-29 08:33 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  62. 2026-09-28 19:23 UTCEG score recompute
  63. 2026-09-28 19:23 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  64. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  65. 2026-09-28 06:07 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  66. 2026-09-27 16:57 UTCEG score recompute
  67. 2026-09-27 16:57 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  68. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  69. 2026-09-27 03:47 UTCEG score recompute
  70. 2026-09-27 03:47 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1
  71. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  72. 2026-09-26 14:35 UTCGHSA enrichmentGHSA-j4vv-v4c9-8599 · GitHub severity CRITICAL · GitHub CVSS 8.1

Frequently asked(5)

What is CVE-2026-96756?
CVE-2026-96756 is a high-severity vulnerability; its CVE record was published on September 23, 2026. orval versions before 8.30.0 contain a code injection vulnerability in the @orval/core factory generator that fails to escape date default values in new Date() calls. Attackers can inject arbitrary expressions through apostrophes in OpenAPI schema defaults to execute code with the privileges of the…
When was CVE-2026-96756 made public?
CVE-2026-96756 was made public on September 7, 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 September 23, 2026. EchelonGraph's copy of the record carries a last-modified date of September 23, 2026; the record at its source may have been updated since.
Is CVE-2026-96756 actively exploited?
CVE-2026-96756 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (59th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-96756?
CVE-2026-96756 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-96756?
A fix for CVE-2026-96756 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-96756 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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