Information Disclosure Vulnerability in Grav by Getgrav
CVE-2026-76839

8.7HIGH

Key Information:

Vendor

Getgrav

Status
Grav
Vendor
CVE Published:
25 August 2026

What is CVE-2026-76839?

Grav versions prior to 2.0.16 present a significant vulnerability where sandboxed Twig templates improperly access sensitive user fields via the allow-listed offsetGet() and offsetExists() methods. This flaw enables attackers with editing permissions on the pages to extract critical information from User objects, such as hashed passwords and 2FA secrets. Consequently, this could lead to offline password cracking attempts and potential authentication bypass, undermining the overall security of affected systems.

Affected Version(s)

grav 0 < 2.0.16

grav 2.0.16

References

https://github.com/getgrav/grav/security/advisories/GHSA-...
vendor-advisory
https://www.vulncheck.com/advisories/grav-before-informat...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

alham-rizvi
.