Grav before 2.0.2 Config Exfiltration via offsetGet Filter
Grav before 2.0.2 contains a Twig sandbox bypass that allows a page author (any admin.pages user, or anyone able to write to user/pages) to exfiltrate configuration secrets. Although the sandbox replaces the 'config' variable with a redacted facade and strips Config::get/toArray from the method allowlist, the raw container remains accessible via the allow-listed grav.offsetGet('config'), which returns the real Config object. Allow-listed object-dumping filters (json_encode, print_r, yaml_encode) then serialize that object at the PHP level without invoking the sandbox method gate, exposing the full config tree including plugin secrets such as SMTP credentials, API keys, and plugin DB credentials. This is an incomplete fix for GHSA-j274-39qw-32c9.
CVE-2026-61450
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-61450
grav
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "getgrav",
"product": "grav",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2.0.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.0.2",
"versionType": "semver"
}
],
"packageURL": "pkg:composer/getgrav/grav",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-61450
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #12770 · Revision 1
- Added to Heist Feed
- Publisher date