Medium 6.0Published Aug 19, 2026

CVE-2026-62672Grav: Authenticated ReDoS via regex_replace in Twig Sandbox

Updated under an hour ago (2026-10-19 09:10 UTC)

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It affects getgrav grav. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for getgrav grav

Exploited in the last 30 days

Grav is a file-based Web platform. Prior to 2.0.4, Grav allowlists the regex_replace filter and function in system/config/security.yaml, and GravExtension::regexReplace() passes an editor-controlled pattern directly to preg_replace(). When security.twig_content.process_enabled is enabled, an authenticated page editor can publish a catastrophically backtracking pattern that consumes PHP worker CPU and denies service to site visitors. This issue is fixed in version 2.0.4.

CVSS: 6.0 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-1333
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

getgrav grav getgrav:grav (from the name)	before 2.0.4	CNA record

References

https://github.com/getgrav/grav/security/advisories/GHSA-37f3-6p89-6qr9x-refsource-confirm
https://github.com/getgrav/grav/commit/907116268ad4f48be7472c57f64981918578599ax-refsource-misc
https://github.com/getgrav/grav/releases/tag/2.0.4x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.