Timing Attack Affecting getgrav/grav package, versions <1.7.53.3>=1.8.0-beta.1, <2.0.16
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-GETGRAVGRAV-19428056
- published29 Aug 2026
- disclosed25 Aug 2026
- creditUnknown
Introduced: 25 Aug 2026
NewCVE-2026-72701 (opens in a new tab)How to fix?
Upgrade getgrav/grav to version 1.7.53.3, 2.0.16 or higher.
Overview
getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS.
Affected versions of this package are vulnerable to Timing Attack via the verifyNonce function. An attacker can recover valid nonce values by measuring response timing differences through multiple requests, potentially bypassing security mechanisms.