CVE-2026-62673: 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]

Quick answers

Is CVE-2026-62673 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-62673 being exploited in the wild.

How severe is CVE-2026-62673?

High severity, with a CVSS score of 8.2, published 19 August 2026.

Which products and versions are affected?

getgrav/grav (Packagist) < 2.0.4.

Is there a fix for CVE-2026-62673?

A patch was published on 2026-08: Version 2.0.4 released with [NC] flag added to affected rules Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-62673 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-62673?

Check whether you run getgrav/grav (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

Grav's `.htaccess` file contains Apache mod_rewrite rules (lines 68, 70, 72) that deny access to sensitive file types (`.yaml`, `.yml`, `.php`, `.json`, `.twig`, etc.) in `user/` and `system/vendor/` directories using the `[F]` flag. However, these rules lack the `[NC]` (No Case) flag, making extension matching case-sensitive. On case-insensitive filesystems (NTFS, HFS+, Docker volumes from Windows/macOS), Apache can resolve file requests with uppercase extensions (e.g., `/user/plugins/config.YAML`) to lowercase filenames on disk, bypassing the rewrite rules entirely. An unauthenticated attacker can request sensitive files with case-varied extensions to retrieve unfiltered content, including plugin configuration files containing API keys, credentials, and database details. The vulnerability requires deployment on a case-insensitive filesystem and Apache with mod_rewrite enabled. Patched in version 2.0.4 by adding the `[NC]` flag to all three affected rules.

Affected products

• Getgrav Grav < 2.0.4, 1.7.x (likely affected)

Identifiers

• CVE-2026-62673
• GHSA-vwg3-w8w3-pc79

Timeline

• 2026-06-29: disclosed
• 2026-08-19: advisory
• 2026-08: patched: Version 2.0.4 released with [NC] flag added to affected rules

References

• https://api.github.com/users/replit-svg
• https://github.com/replit-svg
• https://api.github.com/users/replit-svg/gists%7B/gist_id%7D
• https://api.github.com/users/replit-svg/repos
• https://avatars.githubusercontent.com/u/284967850?v=4
• https://api.github.com/users/replit-svg/events%7B/privacy%7D