CVE-2026-62673

HIGHPre-NVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 66% 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 week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

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

Grav is a file-based Web platform. Prior to 2.0.4, the Grav .htaccess and webserver-configs/htaccess.txt security rules omit the Apache [NC] flag and therefore compare sensitive directory and file-extension patterns case-sensitively. On a case-insensitive filesystem, an unauthenticated requester can use uppercase directory or extension variants to bypass the rules and retrieve files under user/accounts or user/config, including password hashes and security configuration. This issue is fixed in version 2.0.4.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
42(Track)
EG Risk 42/100SSVC: 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
Severity82% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 19, 2026

Advisory Details (3)

Auto-updated Aug 19, 2026
Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

2.0.4

Patch available: getgrav/grav 2.0.4

https://github.com/getgrav/grav/releases/tag/2.0.4
github_commit Patch Available

commit 8c9d1e7b6fd6 (getgrav/grav)

Patch available: getgrav/grav 2.0.4 (contains commit 8c9d1e7b6fd6)

https://github.com/getgrav/grav/commit/8c9d1e7b6fd66ecea80a4bc3783fd41d36e22fb1
github Patch Available

.htaccess file extension rules bypass via case variation on case-insensitive filesystems · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-vwg3-w8w3-pc79

Vendor Advisories for CVE-2026-62673(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 5× in last 7d / 5× 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. 2026-08-21 02:48 UTCEG score recompute
  2. 2026-08-20 22:55 UTCEPSS rescore
  3. 2026-08-19 16:24 UTCEG score recompute
  4. 2026-08-19 16:03 UTCEG score recompute
  5. 2026-08-19 16:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-62673?
CVE-2026-62673 is a high vulnerability published on August 19, 2026. Grav is a file-based Web platform. Prior to 2.0.4, the Grav .htaccess and webserver-configs/htaccess.txt security rules omit the Apache [NC] flag and therefore compare sensitive directory and file-extension patterns case-sensitively. On a case-insensitive filesystem, an unauthenticated requester…
When was CVE-2026-62673 disclosed?
CVE-2026-62673 was first published in the National Vulnerability Database on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62673 actively exploited?
CVE-2026-62673 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 66.3% of all scored CVEs.
What is the CVSS score of CVE-2026-62673?
CVE-2026-62673 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-62673?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62673, 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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