CVE-2026-86196

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 82% 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
Trending — 3 sources updated this weekElevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: Elevated riskExposed: 0

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

Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious Host header, intercept the reset token from victim emails, and complete account takeover including super-admin accounts.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
55(Track*)
EG Risk 55/100SSVC: 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
Severity87% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

September 5, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 5, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Grav API Plugin before 1.0.20 Authentication Bypass via Host Header | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-api-plugin-before-1.0.20-authentication-bypass-via-host-header
github Patch Available🟡 PoC Available

Password reset links in the API plugin are built from the request Host header, allowing anonymous account takeover · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-262p-56vv-7v5r

Vendor Advisories for CVE-2026-86196(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 / 60× 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. 2026-09-19 21:05 UTCEG score recompute
  2. 2026-09-19 21:05 UTCGHSA enrichment
  3. 2026-09-19 09:13 UTCGHSA enrichment
  4. 2026-09-18 21:22 UTCEG score recompute
  5. 2026-09-18 21:22 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 09:14 UTCGHSA enrichment
  8. 2026-09-17 21:23 UTCEG score recompute
  9. 2026-09-17 21:23 UTCGHSA enrichment
  10. 2026-09-17 19:32 UTCEPSS rescore
  11. 2026-09-17 09:33 UTCGHSA enrichment
  12. 2026-09-16 21:42 UTCEG score recompute
  13. 2026-09-16 21:42 UTCGHSA enrichment
  14. 2026-09-16 14:09 UTCEPSS rescore
  15. 2026-09-16 09:52 UTCEG score recompute
  16. 2026-09-16 09:52 UTCGHSA enrichment
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-15 22:01 UTCGHSA enrichment
  19. 2026-09-15 10:10 UTCEG score recompute
  20. 2026-09-15 10:09 UTCGHSA enrichment
  21. 2026-09-15 03:12 UTCEPSS rescore
  22. 2026-09-15 03:12 UTCEPSS rescore
  23. 2026-09-14 22:18 UTCGHSA enrichment
  24. 2026-09-14 10:28 UTCGHSA enrichment
  25. 2026-09-13 22:37 UTCEG score recompute
Show 35 more
  1. 2026-09-13 22:37 UTCGHSA enrichment
  2. 2026-09-13 10:47 UTCGHSA enrichment
  3. 2026-09-12 22:56 UTCEG score recompute
  4. 2026-09-12 22:56 UTCGHSA enrichment
  5. 2026-09-12 11:05 UTCGHSA enrichment
  6. 2026-09-11 23:14 UTCEG score recompute
  7. 2026-09-11 23:14 UTCGHSA enrichment
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 10:56 UTCEG score recompute
  11. 2026-09-11 10:56 UTCGHSA enrichment
  12. 2026-09-10 23:05 UTCGHSA enrichment
  13. 2026-09-10 11:15 UTCEG score recompute
  14. 2026-09-10 11:15 UTCGHSA enrichment
  15. 2026-09-09 23:20 UTCGHSA enrichment
  16. 2026-09-09 08:04 UTCEG score recompute
  17. 2026-09-09 08:04 UTCGHSA enrichment
  18. 2026-09-08 22:01 UTCEPSS rescore
  19. 2026-09-08 20:13 UTCGHSA enrichment
  20. 2026-09-08 19:55 UTCEG score recompute
  21. 2026-09-08 19:54 UTCGHSA enrichment
  22. 2026-09-08 18:15 UTCEG score recompute
  23. 2026-09-08 18:15 UTCGHSA enrichment
  24. 2026-09-08 16:16 UTCGHSA enrichment
  25. 2026-09-08 02:03 UTCEG score recompute
  26. 2026-09-08 02:03 UTCGHSA enrichment
  27. 2026-09-07 14:12 UTCGHSA enrichment
  28. 2026-09-07 00:58 UTCEG score recompute
  29. 2026-09-07 00:57 UTCGHSA enrichment
  30. 2026-09-06 13:48 UTCEPSS rescore
  31. 2026-09-06 13:03 UTCGHSA enrichment
  32. 2026-09-06 01:13 UTCGHSA enrichment
  33. 2026-09-05 13:22 UTCEG score recompute
  34. 2026-09-05 12:34 UTCEG score recompute
  35. 2026-09-05 12:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-86196?
CVE-2026-86196 is a high vulnerability published on September 5, 2026. Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious…
When was CVE-2026-86196 disclosed?
CVE-2026-86196 was first published in the National Vulnerability Database on September 5, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86196 actively exploited?
CVE-2026-86196 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 82.3% of all scored CVEs.
What is the CVSS score of CVE-2026-86196?
CVE-2026-86196 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-86196?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86196, 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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