CVE-2026-42610: Grav: Sensitive Information Disclosure via Accounts Service Bypass

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: yes
Published: 2026-05-11 · updated 2026-10-26
Weakness: CWE-863

Description

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged user (EX: Content Editor with only pages.update permissions) can bypass the existing Twig sandbox restrictions by utilizing the grav['accounts'] service. Attacker can programmatically load administrative user objects and extract sensitive data, including Bcrypt password hashes and the security salt. This vulnerability is fixed in 2.0.0-beta.2.

Affected products

getgrav grav: through 1.8.0; 2.0.0-beta1

References

https://github.com/getgrav/grav/commit/c66dfeb5ff679a1667678c6335eb9ff3255dfc47
https://github.com/getgrav/grav/security/advisories/GHSA-3f29-pqwf-v4j4
https://github.com/getgrav/grav/security/advisories/GHSA-3f29-pqwf-v4j4

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