CVE-2026-47429

MEDIUMNVD 5.95.9
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.9% (58th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-44391 (ENISA EUVD) · GHSA-5xrq-8626-4rwp (GitHub Security Advisories)Source: ENISA EUVD

5.9EG
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: 0.9%CVSS: 5.9Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\?\\..\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile and rerun could also allow arbitrary script execution. This issue is fixed in versions 3.2.5 and 4.1.0.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
58
EG Risk 58/100

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)
Severity59% × 45%
Impact severity (EG Severity): CVSS 5.9 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
0.9%
EPSS %ILE
58th
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 (5.9): severity, escalated by confirmed exploitation. This CVE's 5.9 is its impact severity (EG Severity), not escalated.

EG Severity
5.9 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.9% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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: 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.

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

June 1, 2026

Last Modified

October 24, 2026

Advisory Details (7)

Auto-updated Aug 1, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
GitHub advisoryMentions a patch (unverified)

Arbitrary file can be read and executed when Vitest UI server is listening · Advisory · vitest-dev/vitest · GitHub

https://github.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwp
GitHub release Patch Available

v4.1.0

Patch available: vitest-dev/vitest v4.1.0

https://github.com/vitest-dev/vitest/releases/tag/v4.1.0
GitHub release Patch Available

v3.2.5

Patch available: vitest-dev/vitest v3.2.5

https://github.com/vitest-dev/vitest/releases/tag/v3.2.5
GitHub pull request Patch Available

feat(api): add `allowWrite` and `allowExec` options to `api`

Patch available: vitest-dev/vitest v4.1.0-beta.3 (PR #9350 merged 2026-01-29)

https://github.com/vitest-dev/vitest/pull/9350
GitHub pull request Patch Available

feat(api): add `allowWrite` and `allowExec` options to `api` [backport to v3]

Patch available: vitest-dev/vitest v3.2.5 (PR #10445 merged 2026-05-28)

https://github.com/vitest-dev/vitest/pull/10445
GitHub commit Patch Available

commit af88b1f5d828 (vitest-dev/vitest)

Patch available: vitest-dev/vitest v3.2.5 (contains commit af88b1f5d828)

https://github.com/vitest-dev/vitest/commit/af88b1f5d82844a4761ea9a977156c98e2b14ca8
GitHub commit Patch Available

commit 20e00ef7808d (vitest-dev/vitest)

Patch available: vitest-dev/vitest v4.1.0-beta.3 (contains commit 20e00ef7808d)

https://github.com/vitest-dev/vitest/commit/20e00ef7808de6d330c5e2fda530f686e08f1c8d

Vendor Advisories for CVE-2026-47429(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatprometheus3-13-main-3.13.1-0.1.hum12026-07-13redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
vitest—
  • 4.0.0 up to 4.1.0: fixed in 4.1.0
  • every version up to 3.2.6: fixed in 3.2.6
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 40× 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 181 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 81 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  2. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  3. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  4. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  5. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  6. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  7. 2026-10-25 14:24 UTCEG score recompute
  8. 2026-10-24 21:27 UTCEG score recompute
  9. 2026-10-24 21:27 UTCVendor advisory
  10. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  11. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  12. 2026-10-22 23:13 UTCEG score recompute
  13. 2026-10-22 23:13 UTCVendor advisory
  14. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  15. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  16. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  17. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  18. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  19. 2026-10-18 03:36 UTCEG score recompute
  20. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  21. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  22. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  23. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  24. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  25. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
Show 75 more
  1. 2026-10-12 16:01 UTCEG score recompute
  2. 2026-10-11 19:44 UTCEG score recompute
  3. 2026-10-11 16:59 UTCEG score recompute
  4. 2026-10-11 14:24 UTCEG score recompute
  5. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  6. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  7. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  8. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  9. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  10. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  11. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  13. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  14. 2026-10-03 13:39 UTCOSV refresh
  15. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  16. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  17. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  18. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  19. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  20. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  21. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  22. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  23. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  24. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  26. 2026-09-14 06:10 UTCEG score recompute
  27. 2026-09-14 06:10 UTCVendor advisory
  28. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  29. 2026-09-13 01:06 UTCOSV refresh
  30. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  31. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  32. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  33. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  34. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  35. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  36. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  37. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  38. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  39. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  40. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  41. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  42. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  43. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  44. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  45. 2026-08-25 03:57 UTCEG score recompute
  46. 2026-08-25 03:57 UTCVendor advisory
  47. 2026-08-23 13:56 UTCEG score recompute
  48. 2026-08-23 13:56 UTCVendor advisory
  49. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  50. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  51. 2026-08-21 14:52 UTCEG score recompute
  52. 2026-08-21 14:52 UTCVendor advisory
  53. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  54. 2026-08-20 10:18 UTCEG score recompute
  55. 2026-08-20 10:18 UTCVendor advisory
  56. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  57. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  58. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  59. 2026-08-17 13:18 UTCVendor advisory
  60. 2026-08-16 15:01 UTCEG score recompute
  61. 2026-08-16 15:01 UTCVendor advisory
  62. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  63. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  64. 2026-08-15 15:44 UTCEG score recompute
  65. 2026-08-15 15:44 UTCVendor advisory
  66. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  67. 2026-08-14 06:16 UTCEG score recompute
  68. 2026-08-14 06:16 UTCVendor advisory
  69. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  70. 2026-08-13 07:59 UTCEG score recompute
  71. 2026-08-13 07:59 UTCVendor advisory
  72. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  73. 2026-08-12 08:57 UTCEG score recompute
  74. 2026-08-12 08:57 UTCVendor advisory
  75. 2026-08-11 10:29 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-47429?
CVE-2026-47429 is a medium-severity vulnerability; its CVE record was published on June 1, 2026. Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /vitest_attachment, allowing \\?\\..\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile…
When was the CVE record for CVE-2026-47429 published?
The CVE record for CVE-2026-47429 was published on June 1, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-47429 actively exploited?
CVE-2026-47429 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (58th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-47429?
CVE-2026-47429 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-47429?
A fix for CVE-2026-47429 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-47429 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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