Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems
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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-62230US | — | — | ||
Grav before 2.0.4 ships a default .htaccess (and reference webserver-configs/htaccess.txt) whose rules blocking access to sensitive file types (.yaml, .php, .json, etc.) lack the [… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62673.jsonADVISORY
- https://github.com/getgrav/grav/commit/8c9d1e7b6fd66ecea80a4bc3783fd41d36e22fb1FIX
- https://github.com/getgrav/grav/releases/tag/2.0.4WEB
- https://github.com/getgrav/grav/security/advisories/GHSA-vwg3-w8w3-pc79ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-62673ADVISORY
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