CVE-2026-73306

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-07-24. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Budibase is an open-source low-code platform. Prior to 3.39.25, POST /api/global/auth/:tenantId/login incremented the failure counter in packages/worker/src/api/controllers/global/auth.ts only for existing users, while packages/worker/src/middleware/emailLockout.ts returned X-Account-Locked and Retry-After only for locked identifiers. An unauthenticated attacker could compare the response after repeated failures to enumerate valid email addresses and temporarily lock valid accounts. This issue is fixed in version 3.39.25.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 13, 2026

Advisory Details (4)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

3.39.25

Patch available: Budibase/budibase 3.39.25

https://github.com/Budibase/budibase/releases/tag/3.39.25
github_commit Patch Available

commit eaae816ab816 (Budibase/budibase)

Patch available: Budibase/budibase 3.39.25 (contains commit eaae816ab816)

https://github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2a706
github_pr Patch Available

[Codex] [106] Align login lockout for unknown users

Patch available: Budibase/budibase 3.39.25 (PR #19108 merged 2026-07-01)

https://github.com/Budibase/budibase/pull/19108
github Patch Available🟡 PoC Available

Account Enumeration via Login Lockout Response Differential in Budibase · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm

Vendor Advisories for CVE-2026-73306(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 / EcosystemFixed in / PatchReleasedSource
npm@budibase/server—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 rangeFixed inDependents
@budibase/server———

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-25 04:46 UTCEG score recompute
  3. 2026-08-25 04:46 UTCGHSA enrichment
  4. 2026-08-24 03:25 UTCEG score recompute
  5. 2026-08-24 03:25 UTCGHSA enrichment
  6. 2026-08-23 02:01 UTCEG score recompute
  7. 2026-08-23 02:01 UTCGHSA enrichment
  8. 2026-08-23 00:19 UTCEPSS rescore
  9. 2026-08-22 00:40 UTCEG score recompute
  10. 2026-08-22 00:39 UTCGHSA enrichment
  11. 2026-08-21 23:49 UTCEPSS rescore
  12. 2026-08-20 23:18 UTCEG score recompute
  13. 2026-08-20 23:18 UTCGHSA enrichment
  14. 2026-08-20 22:56 UTCEPSS rescore
  15. 2026-08-19 21:57 UTCEG score recompute
  16. 2026-08-19 21:57 UTCGHSA enrichment
  17. 2026-08-19 17:04 UTCEPSS rescore
  18. 2026-08-18 20:34 UTCEG score recompute
  19. 2026-08-18 20:34 UTCGHSA enrichment
  20. 2026-08-18 13:49 UTCEPSS rescore
  21. 2026-08-18 13:49 UTCEPSS rescore
  22. 2026-08-17 19:13 UTCEG score recompute
  23. 2026-08-17 19:13 UTCGHSA enrichment
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-16 17:41 UTCEG score recompute
Show 19 more
  1. 2026-08-16 17:41 UTCGHSA enrichment
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 02:15 UTCEPSS rescore
  5. 2026-08-15 16:20 UTCEG score recompute
  6. 2026-08-15 16:20 UTCGHSA enrichment
  7. 2026-08-15 01:31 UTCEPSS rescore
  8. 2026-08-14 14:58 UTCEG score recompute
  9. 2026-08-14 14:58 UTCGHSA enrichment
  10. 2026-08-13 22:00 UTCEPSS rescore
  11. 2026-08-13 13:36 UTCEG score recompute
  12. 2026-08-13 13:36 UTCGHSA enrichment
  13. 2026-08-13 12:27 UTCEG score recompute
  14. 2026-08-13 12:27 UTCGHSA enrichment
  15. 2026-08-12 20:20 UTCEG score recompute
  16. 2026-08-12 20:20 UTCGHSA enrichment
  17. 2026-08-12 19:21 UTCEG score recompute
  18. 2026-08-12 19:21 UTCGHSA enrichment
  19. 2026-08-12 19:20 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73306?
CVE-2026-73306 is a medium vulnerability published on August 12, 2026. Budibase is an open-source low-code platform. Prior to 3.39.25, POST /api/global/auth/:tenantId/login incremented the failure counter in packages/worker/src/api/controllers/global/auth.ts only for existing users, while packages/worker/src/middleware/emailLockout.ts returned X-Account-Locked and…
When was CVE-2026-73306 disclosed?
CVE-2026-73306 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73306 actively exploited?
CVE-2026-73306 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 75.7% of all scored CVEs.
What is the CVSS score of CVE-2026-73306?
CVE-2026-73306 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-73306?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73306, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-73306

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