What is CVE-2026-62237?

CVE-2026-62237 is a medium-severity vulnerability in Getgrav Grav, classified under Inefficient Regular Expression Complexity. CVSS score: 6.5/10. Published 2026-07-17.

How severe is CVE-2026-62237?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Getgrav Grav

CVE-2026-62237

Grav before 2.0.4 contains a regular expression denial of service (ReDoS) vulnerability in the regex_replace filter and function, which are allowlisted in the Twig content sandbox. When Twig processing in page content is enabled (security…

Vulnerability class: ReDoS (Regular Expression Denial of Service)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Getgrav Grav — versions 0, 2.0.4

Weakness classification (CWE)

CWE-1333 — Inefficient Regular Expression Complexity

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-62237?: CVE-2026-62237 is a medium-severity vulnerability in Getgrav Grav, classified under Inefficient Regular Expression Complexity. CVSS score: 6.5/10. Published 2026-07-17.
How severe is CVE-2026-62237?: Medium severity. CVSS v3 base score is 6.5 out of 10.