CVE-2026-67345

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. the CNA's CVSS baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

MaxKey through 4.1.12, fixed in commit ddbb72f, contains an insufficient redirect URI validation vulnerability in DefaultRedirectResolver.hostMatches() that allows remote attackers to hijack OAuth 2.0 authorization codes by supplying a crafted redirect_uri whose hostname suffix matches a registered URI without proper dot-boundary anchoring. Attackers who control a domain ending with the registered redirect URI hostname can social-engineer victims into clicking a crafted authorization URL, causing the authorization code to be issued to the attacker-controlled URI and exchanged for an access token granting access to the victim's identity.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

July 30, 2026

Last Modified

August 14, 2026

Advisory Details (3)

Auto-updated Jul 30, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

MaxKey 4.1.12 DefaultRedirectResolver OAuth Authorization Code Theft | Advisories | VulnCheck

https://www.vulncheck.com/advisories/maxkey-defaultredirectresolver-oauth-authorization-code-theft
github_commit

commit ddbb72fb24ab (dromara/MaxKey)

Fix landed in dromara/MaxKey commit ddbb72fb24ab — awaiting tagged release

https://github.com/dromara/MaxKey/commit/ddbb72fb24ab8e66aa422fb14b1177330bcffb45
generic

OAuth 2.0 redirect_uri bypass via subdomain prefix allows authorization code theft · Issue #269 · dromara/MaxKey · GitHub

https://github.com/dromara/MaxKey/issues/269

Vendor Advisories for CVE-2026-67345(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 27× in last 7d / 110× 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.

Showing the most recent 100 of 110 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-67345?
CVE-2026-67345 is a high vulnerability published on July 30, 2026. MaxKey through 4.1.12, fixed in commit ddbb72f, contains an insufficient redirect URI validation vulnerability in DefaultRedirectResolver.hostMatches() that allows remote attackers to hijack OAuth 2.0 authorization codes by supplying a crafted redirect_uri whose hostname suffix matches a registered…
When was CVE-2026-67345 disclosed?
CVE-2026-67345 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-2026-67345 actively exploited?
CVE-2026-67345 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 76.8% of all scored CVEs.
What is the CVSS score of CVE-2026-67345?
CVE-2026-67345 has a CVSS v4.0 base score of 8.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-67345?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67345, 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

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