CVE-2026-61842Network attack vector

Authenticated secret disclosure via Twig sandbox bypass

Published Aug 19, 2026 · Updated Aug 19, 2026

Information disclosure in Grav before 2.0.2 allows remote authenticated users to read plugin configuration secrets via sandboxed Twig content. The Twig sandbox allows grav.offsetGet('config') to return the live Config object, and allow-listed json_encode, print_r, yaml_encode, and string filters serialize that object without invoking GravSecurityPolicy::checkMethodAllowed. Page-author permissions or equivalent write access to user/pages are required; the resulting exposure is read-only but can reveal SMTP credentials, API keys, and plugin database credentials on default modular-page paths.

CVSS severity6.5
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Grav before 2.0.2 allows remote authenticated users to read plugin configuration secrets via sandboxed Twig content. The Twig sandbox allows grav.offsetGet('config') to return the live Config object, and allow-listed json_encode, print_r, yaml_encode, and string filters serialize that object without invoking GravSecurityPolicy::checkMethodAllowed. Page-author permissions or equivalent write access to user/pages are required; the resulting exposure is read-only but can reveal SMTP credentials, API keys, and plugin database credentials on default modular-page paths.

The record

CVE
CVE-2026-61842
Published
Aug 19, 2026
Updated
Aug 19, 2026
Vendor
Grav
Product
Grav
Classifications
CWE-200, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grav · Gravversion=< 2.0.2

Published CVSS scores

6.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1552.001Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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