CVE-2026-67437

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 72% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

OliveTin gives access to predefined shell commands from a web interface. From 3000.0.0 until 3000.17.0, the service/internal/auth/otoauth2/restapi_auth_oauth2.go OAuth2 login handler stores per-login state in the registeredStates map on every /oauth/login request without expiring, deleting, or bounding entries, allowing an unauthenticated attacker to exhaust memory and cause a denial of service. This issue is fixed in version 3000.17.0.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
65(Attend)
EG Risk 65/100SSVC: 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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

Advisory Details (3)

Auto-updated Jul 29, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

3000.17.0

Patch available: OliveTin/OliveTin 3000.17.0

https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0
github_commit

commit ec114e95d297 (OliveTin/OliveTin)

Fix landed in OliveTin/OliveTin commit ec114e95d297 — awaiting tagged release

https://github.com/OliveTin/OliveTin/commit/ec114e95d297b806c3ca0c37bc139b3c9c517b3f
github Patch Available🟡 PoC Available

Unauthenticated DoS via OAuth2 State Memory Exhaustion (Unbounded Map Growth) · Advisory · OliveTin/OliveTin · GitHub

https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xpxj-f2fm-rqch

Vendor Advisories for CVE-2026-67437(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/OliveTin/OliveTin—0.0.0-20260708075951-ec114e95d297—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 8× 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. 2026-09-15 07:45 UTCEG score recompute
  2. 2026-09-13 18:08 UTCEG score recompute
  3. 2026-09-12 18:42 UTCEG score recompute
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  5. 2026-09-11 14:53 UTCEPSS rescore
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  7. 2026-09-10 19:48 UTCEG score recompute
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  9. 2026-09-08 22:01 UTCEPSS rescore
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  25. 2026-08-30 10:47 UTCEG score recompute
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  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 23:06 UTCEG score recompute
  3. 2026-08-28 21:42 UTCEPSS rescore
  4. 2026-08-27 21:05 UTCEG score recompute
  5. 2026-08-26 19:37 UTCEG score recompute
  6. 2026-08-26 14:47 UTCEPSS rescore
  7. 2026-08-25 17:38 UTCEG score recompute
  8. 2026-08-25 13:49 UTCEPSS rescore
  9. 2026-08-24 17:52 UTCEG score recompute
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  11. 2026-08-21 23:49 UTCEPSS rescore
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  13. 2026-08-20 22:56 UTCEPSS rescore
  14. 2026-08-19 19:38 UTCEG score recompute
  15. 2026-08-19 17:04 UTCEPSS rescore
  16. 2026-08-18 19:27 UTCEG score recompute
  17. 2026-08-18 13:48 UTCEPSS rescore
  18. 2026-08-17 19:53 UTCEG score recompute
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-16 20:24 UTCEG score recompute
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 08:44 UTCEG score recompute
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  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-13 22:24 UTCEG score recompute
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  27. 2026-08-12 23:04 UTCEG score recompute
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  29. 2026-08-11 23:45 UTCEG score recompute
  30. 2026-08-11 00:25 UTCEG score recompute
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  32. 2026-08-10 01:05 UTCEG score recompute
  33. 2026-08-09 13:47 UTCEPSS rescore
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  35. 2026-08-08 16:37 UTCEPSS rescore
  36. 2026-08-08 02:26 UTCEG score recompute
  37. 2026-08-06 15:26 UTCEG score recompute
  38. 2026-08-06 13:47 UTCEPSS rescore
  39. 2026-08-06 03:46 UTCEG score recompute
  40. 2026-08-05 19:17 UTCEPSS rescore
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  42. 2026-08-04 16:43 UTCEG score recompute
  43. 2026-08-04 15:10 UTCEPSS rescore
  44. 2026-08-04 10:39 UTCEPSS rescore
  45. 2026-08-03 17:22 UTCEG score recompute
  46. 2026-08-03 10:36 UTCEPSS rescore
  47. 2026-08-02 06:19 UTCEG score recompute
  48. 2026-08-02 02:27 UTCEPSS rescore
  49. 2026-08-01 06:59 UTCEG score recompute
  50. 2026-08-01 04:16 UTCEPSS rescore
  51. 2026-07-30 19:42 UTCEG score recompute
  52. 2026-07-30 16:28 UTCEPSS rescore
  53. 2026-07-30 15:35 UTCEG score recompute
  54. 2026-07-30 14:59 UTCEG score recompute
  55. 2026-07-29 21:22 UTCEG score recompute
  56. 2026-07-29 21:07 UTCEG score recompute
  57. 2026-07-29 21:07 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-67437?
CVE-2026-67437 is a high vulnerability published on July 29, 2026. OliveTin gives access to predefined shell commands from a web interface. From 3000.0.0 until 3000.17.0, the service/internal/auth/otoauth2/restapiauthoauth2.go OAuth2 login handler stores per-login state in the registeredStates map on every /oauth/login request without expiring, deleting, or…
When was CVE-2026-67437 disclosed?
CVE-2026-67437 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67437 actively exploited?
CVE-2026-67437 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 71.8% of all scored CVEs.
What is the CVSS score of CVE-2026-67437?
CVE-2026-67437 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-67437?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67437, 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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