CVE-2026-62386

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-17. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

The Grav API plugin (getgrav/grav-plugin-api) before 1.0.0-rc.16 accepts JWT access tokens through the ?token= URL query parameter on every API route (JwtAuthenticator::extractBearerToken fallback). Because tokens are embedded in URLs, they are logged verbatim in web server access logs, leaked via the Referer header, stored in browser history, and captured by upstream proxy and CDN logs, exposing valid admin access tokens. A leaked token grants unauthorized API access, including reading configuration and user data, creating admin accounts, modifying system settings, and deleting pages.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
—
EPSS
18.8%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 17, 2026

Advisory Details (2)

Auto-updated Jul 17, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Grav < 1.0.0-rc.16 Authentication Bypass via token URL Parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-rc-16-authentication-bypass-via-token-url-parameter
github Patch Available🟡 PoC Available

JWT Access Token Accepted via `?token=` URL Query Parameter · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq

Vendor Advisories for CVE-2026-62386(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 13× in last 7d / 13× 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. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:25 UTCEPSS rescore
  4. 2026-07-21 15:25 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-18 13:57 UTCEG score recompute
  9. 2026-07-18 13:57 UTCGHSA enrichment
  10. 2026-07-18 10:04 UTCEPSS rescore
  11. 2026-07-17 06:53 UTCGHSA enrichment
  12. 2026-07-17 00:24 UTCEG score recompute
  13. 2026-07-17 00:22 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-62386?
CVE-2026-62386 is a high vulnerability published on July 17, 2026. The Grav API plugin (getgrav/grav-plugin-api) before 1.0.0-rc.16 accepts JWT access tokens through the ?token= URL query parameter on every API route (JwtAuthenticator::extractBearerToken fallback). Because tokens are embedded in URLs, they are logged verbatim in web server access logs, leaked via…
When was CVE-2026-62386 disclosed?
CVE-2026-62386 was first published in the National Vulnerability Database on July 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62386 actively exploited?
CVE-2026-62386 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 18.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-62386?
CVE-2026-62386 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-62386?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62386, 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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