CVE-2026-66414

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-07-30. the CNA's CVSS baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: Elevated riskExposed: 0

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

Leantime 3.6.2 contains an open redirect vulnerability in the Login controller that allows unauthenticated attackers to redirect authenticated users to arbitrary external sites by manipulating the redirectUrl POST parameter. Attackers can craft a malicious login URL with a tampered redirectUrl value that bypasses FILTER_SANITIZE_URL validation to redirect victims to attacker-controlled sites for phishing or credential theft.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
43(Track)
EG Risk 43/100SSVC: Track

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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

July 30, 2026

Last Modified

August 14, 2026

Advisory Details (4)

Auto-updated Jul 30, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr, github.
generic

Leantime Open Redirect in Login Controller via redirectUrl Parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/leantime-open-redirect-in-login-controller-via-redirecturl-parameter
generic

GitHub - Leantime/leantime: Leantime is a goals focused project management system for non-project managers. Building with ADHD, Autism, and dyslexia in mind. · GitHub

https://github.com/Leantime/leantime
github Patch Available🟡 PoC Available

Open Redirect in Leantime Login Handler — CWE-601 · Advisory · javokhir-sec/CVE-PoC-Hub · GitHub

https://github.com/javokhir-sec/CVE-PoC-Hub/security/advisories/GHSA-wprg-q8m6-jhp9
github_pr

fix: use resolveSafeRedirect() in Login POST handler to prevent Open Redirect (CWE-601)

Upstream fix in progress (PR #3658 · Leantime/leantime, state=open)

https://github.com/Leantime/leantime/pull/3658

Vendor Advisories for CVE-2026-66414(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 19× in last 7d / 70× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 14:45 UTCEG score recompute
  3. 2026-08-20 14:45 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 15:21 UTCGHSA enrichment
  6. 2026-08-18 15:56 UTCEG score recompute
  7. 2026-08-18 15:55 UTCGHSA enrichment
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 15:22 UTCEG score recompute
  10. 2026-08-17 15:22 UTCGHSA enrichment
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-16 15:58 UTCEG score recompute
  13. 2026-08-16 15:58 UTCGHSA enrichment
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-15 16:35 UTCEG score recompute
  16. 2026-08-15 16:35 UTCGHSA enrichment
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-14 17:11 UTCEG score recompute
  19. 2026-08-14 17:11 UTCGHSA enrichment
  20. 2026-08-14 04:25 UTCEG score recompute
  21. 2026-08-14 04:25 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 05:01 UTCEG score recompute
  24. 2026-08-13 05:01 UTCGHSA enrichment
  25. 2026-08-12 13:51 UTCEPSS rescore
Show 45 more
  1. 2026-08-12 05:38 UTCEG score recompute
  2. 2026-08-12 05:38 UTCGHSA enrichment
  3. 2026-08-11 06:08 UTCEG score recompute
  4. 2026-08-11 06:08 UTCGHSA enrichment
  5. 2026-08-11 00:00 UTCEPSS rescore
  6. 2026-08-10 06:44 UTCEG score recompute
  7. 2026-08-10 06:44 UTCGHSA enrichment
  8. 2026-08-09 13:47 UTCEPSS rescore
  9. 2026-08-09 07:21 UTCEG score recompute
  10. 2026-08-09 07:21 UTCGHSA enrichment
  11. 2026-08-08 16:37 UTCEPSS rescore
  12. 2026-08-08 07:58 UTCEG score recompute
  13. 2026-08-08 07:58 UTCGHSA enrichment
  14. 2026-08-07 08:34 UTCEG score recompute
  15. 2026-08-07 08:34 UTCGHSA enrichment
  16. 2026-08-06 13:47 UTCEPSS rescore
  17. 2026-08-06 09:11 UTCEG score recompute
  18. 2026-08-06 09:11 UTCGHSA enrichment
  19. 2026-08-05 19:17 UTCEPSS rescore
  20. 2026-08-05 19:17 UTCEPSS rescore
  21. 2026-08-05 09:48 UTCEG score recompute
  22. 2026-08-05 09:48 UTCGHSA enrichment
  23. 2026-08-04 15:10 UTCEPSS rescore
  24. 2026-08-04 10:39 UTCEPSS rescore
  25. 2026-08-04 09:59 UTCEG score recompute
  26. 2026-08-04 09:59 UTCGHSA enrichment
  27. 2026-08-03 10:36 UTCEPSS rescore
  28. 2026-08-03 10:35 UTCGHSA enrichment
  29. 2026-08-02 11:06 UTCEG score recompute
  30. 2026-08-02 11:06 UTCGHSA enrichment
  31. 2026-08-02 02:27 UTCEPSS rescore
  32. 2026-08-01 11:42 UTCEG score recompute
  33. 2026-08-01 11:42 UTCGHSA enrichment
  34. 2026-08-01 04:16 UTCEPSS rescore
  35. 2026-07-31 12:18 UTCEG score recompute
  36. 2026-07-31 12:18 UTCGHSA enrichment
  37. 2026-07-31 12:00 UTCEG score recompute
  38. 2026-07-31 12:00 UTCGHSA enrichment
  39. 2026-07-30 20:12 UTCGHSA enrichment
  40. 2026-07-30 19:30 UTCEG score recompute
  41. 2026-07-30 19:30 UTCGHSA enrichment
  42. 2026-07-30 18:02 UTCEG score recompute
  43. 2026-07-30 17:24 UTCEG score recompute
  44. 2026-07-30 16:48 UTCEG score recompute
  45. 2026-07-30 16:46 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-66414?
CVE-2026-66414 is a medium vulnerability published on July 30, 2026. Leantime 3.6.2 contains an open redirect vulnerability in the Login controller that allows unauthenticated attackers to redirect authenticated users to arbitrary external sites by manipulating the redirectUrl POST parameter. Attackers can craft a malicious login URL with a tampered redirectUrl…
When was CVE-2026-66414 disclosed?
CVE-2026-66414 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66414 actively exploited?
CVE-2026-66414 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 90.1% of all scored CVEs.
What is the CVSS score of CVE-2026-66414?
CVE-2026-66414 has a CVSS v4.0 base score of 6.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-66414?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66414, 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

Explore the affected products and dependency analysis for CVE-2026-66414

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