CVE-2026-41428

CRITICALNVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-16. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated

Also known asEUVD-2026-25618 (ENISA EUVD) · GHSA-8783-3wgf-jggf (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (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: 0.4%CVSS: 9.1Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

Budibase is an open-source low-code platform. Prior to 3.35.4, the authenticated middleware uses unanchored regular expressions to match public (no-auth) endpoint patterns against ctx.request.url. Since ctx.request.url in Koa includes the query string, an attacker can access any protected endpoint by appending a public endpoint path as a query parameter. For example, POST /api/global/users/search?x=/api/system/status bypasses all authentication because the regex /api/system/status/ matches in the query string portion of the URL. This vulnerability is fixed in 3.35.4.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
57
EG Risk 57/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 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.
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 public PoC (CISA Vulnrichment) · Automatable no (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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
39th
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-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 2026-11-12). 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: 60 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).

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (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)60 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 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

April 24, 2026

Last Modified

November 11, 2026

Advisory Details (1)

Auto-updated Aug 1, 2026
Fix named in the CVE record. Sources: github.
GitHub advisoryMentions a patch (unverified)

Authentication Bypass via Unanchored Regex in Public Endpoint Matcher — Unauthenticated Access to Protected Endpoints · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-8783-3wgf-jggf

Vendor Advisories for CVE-2026-41428(1)

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
npm@budibase/backend-core—ghsa

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
@budibase/backend-core—
  • every version through 3.35.3: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 59× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 382 rows 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 282 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 01:10 UTCEchelonGraph re-scored
  2. 2026-11-13 01:10 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.4% · 39th percentile
  4. 2026-11-11 23:28 UTCEchelonGraph re-scored
  5. 2026-11-11 23:28 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.4% · 39th percentile
  7. 2026-11-11 12:10 UTCEchelonGraph re-scored
  8. 2026-11-11 12:10 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  9. 2026-11-10 16:44 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  10. 2026-11-10 10:30 UTCEchelonGraph re-scored
  11. 2026-11-10 10:30 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  13. 2026-11-09 08:51 UTCEchelonGraph re-scored
  14. 2026-11-09 08:51 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  15. 2026-11-08 16:39 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  16. 2026-11-08 07:12 UTCEchelonGraph re-scored
  17. 2026-11-08 07:12 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  18. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  19. 2026-11-07 05:29 UTCEchelonGraph re-scored
  20. 2026-11-07 05:29 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  21. 2026-11-06 16:37 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  22. 2026-11-06 07:55 UTCOSV refresh
  23. 2026-11-06 03:50 UTCEchelonGraph re-scored
  24. 2026-11-06 03:50 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.4% · 38th percentile
Show 75 more
  1. 2026-11-05 02:11 UTCEchelonGraph re-scored
  2. 2026-11-05 02:11 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  4. 2026-11-04 00:32 UTCEchelonGraph re-scored
  5. 2026-11-04 00:32 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  7. 2026-11-02 22:54 UTCEchelonGraph re-scored
  8. 2026-11-02 22:54 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  9. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  10. 2026-11-01 21:14 UTCEchelonGraph re-scored
  11. 2026-11-01 21:14 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  13. 2026-10-31 19:35 UTCEchelonGraph re-scored
  14. 2026-10-31 19:35 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  15. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  16. 2026-10-30 17:56 UTCEchelonGraph re-scored
  17. 2026-10-30 17:56 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  18. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  19. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  20. 2026-10-29 16:18 UTCEchelonGraph re-scored
  21. 2026-10-29 16:18 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  22. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  23. 2026-10-28 14:39 UTCEchelonGraph re-scored
  24. 2026-10-28 14:39 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  26. 2026-10-27 12:31 UTCEchelonGraph re-scored
  27. 2026-10-27 12:31 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  28. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  29. 2026-10-26 10:52 UTCEchelonGraph re-scored
  30. 2026-10-26 10:52 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  31. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  32. 2026-10-25 14:30 UTCEchelonGraph re-scored
  33. 2026-10-25 09:14 UTCEchelonGraph re-scored
  34. 2026-10-25 09:14 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  35. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  36. 2026-10-24 07:35 UTCEchelonGraph re-scored
  37. 2026-10-24 07:35 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  38. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  39. 2026-10-23 05:56 UTCEchelonGraph re-scored
  40. 2026-10-23 05:56 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  41. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  42. 2026-10-22 04:17 UTCEchelonGraph re-scored
  43. 2026-10-22 04:17 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  44. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  45. 2026-10-21 02:38 UTCEchelonGraph re-scored
  46. 2026-10-21 02:38 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  47. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  48. 2026-10-20 00:58 UTCEchelonGraph re-scored
  49. 2026-10-20 00:58 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  50. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  51. 2026-10-18 23:18 UTCEchelonGraph re-scored
  52. 2026-10-18 23:18 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  53. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  54. 2026-10-18 03:41 UTCEchelonGraph re-scored
  55. 2026-10-17 21:39 UTCEchelonGraph re-scored
  56. 2026-10-17 21:39 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  57. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  58. 2026-10-16 20:00 UTCEchelonGraph re-scored
  59. 2026-10-16 20:00 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  60. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  61. 2026-10-15 17:24 UTCEchelonGraph re-scored
  62. 2026-10-15 17:23 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  63. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  64. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  65. 2026-10-14 11:23 UTCEchelonGraph re-scored
  66. 2026-10-14 11:22 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  67. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  68. 2026-10-13 09:42 UTCEchelonGraph re-scored
  69. 2026-10-13 09:42 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  70. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  71. 2026-10-12 16:08 UTCEchelonGraph re-scored
  72. 2026-10-12 08:02 UTCGHSA enrichmentGHSA-8783-3wgf-jggf · GitHub severity CRITICAL · GitHub CVSS 9.1
  73. 2026-10-11 19:50 UTCEchelonGraph re-scored
  74. 2026-10-11 17:04 UTCEchelonGraph re-scored
  75. 2026-10-11 14:30 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-41428?
CVE-2026-41428 is a critical-severity vulnerability; its CVE record was published on April 24, 2026. Budibase is an open-source low-code platform. Prior to 3.35.4, the authenticated middleware uses unanchored regular expressions to match public (no-auth) endpoint patterns against ctx.request.url. Since ctx.request.url in Koa includes the query string, an attacker can access any protected endpoint…
When was the CVE record for CVE-2026-41428 published?
The CVE record for CVE-2026-41428 was published on April 24, 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 November 11, 2026; the record at its source may have been updated since.
Is CVE-2026-41428 actively exploited?
CVE-2026-41428 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-41428?
CVE-2026-41428 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-41428?
The CVE record for CVE-2026-41428 names the fix: "This vulnerability is fixed in 3.35.4." The vendor advisories EchelonGraph has for CVE-2026-41428 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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