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.
Metrics
Affected Vendors & Products
References
History
Thu, 20 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Wed, 19 Aug 2026 19:00:00 +0000
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| First Time appeared |
Getgrav
Getgrav grav |
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| Vendors & Products |
Getgrav
Getgrav grav |
Wed, 19 Aug 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | 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. | |
| Title | Grav: Authenticated ReDoS via regex_replace in Twig Sandbox | |
| Weaknesses | CWE-1333 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-19T18:00:39.622Z
Reserved: 2026-07-14T20:22:04.394Z
Link: CVE-2026-62672
Updated: 2026-08-19T18:00:18.248Z
Status : Received
Published: 2026-08-19T16:18:20.000
Modified: 2026-08-19T18:16:54.123
Link: CVE-2026-62672
No data.
OpenCVE Enrichment
Updated: 2026-08-20T15:15:03Z