Medium severity · published Aug 25, 2026
CVE-2026-76839
Grav before 2.0.16 Information Disclosure via offsetGet
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav · getgrav
before 2.0.16 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76839
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76839
vendor-advisory
https://github.com/getgrav/grav/security/advisories/GHSA-3jhr-mxmx-38cx
third-party-advisory
https://www.vulncheck.com/advisories/grav-before-information-disclosure-via-offsetget
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