What’s Vulnerable › Vulnerabilities

CVE-2026-76839: Grav before 2.0.16 Information Disclosure via offsetGet

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-25 · updated 2026-10-12
• Weakness: CWE-522

Description

Grav before 2.0.16 allows sandboxed Twig templates to access sensitive User fields through allow-listed offsetGet() and offsetexists() methods that lack field filtering. Attackers with page-edit permissions can call offsetGet() on User objects to extract hashed passwords and 2FA secrets, enabling offline password cracking and authentication bypass.

Affected products

• getgrav grav: before 2.0.16 — fixed in 2.0.16

How to fix

Upgrade to a fixed version: getgrav grav 2.0.16. Check the vendor advisory for mitigations.

References

• https://github.com/getgrav/grav/security/advisories/GHSA-3jhr-mxmx-38cx
• https://www.vulncheck.com/advisories/grav-before-information-disclosure-via-offsetget
• https://github.com/getgrav/grav/security/advisories/GHSA-3jhr-mxmx-38cx

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