Origin Validation Error Affecting nextcloud-server-30 package, versions <30.0.17-r2
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-CHAINGUARDLATEST-NEXTCLOUDSERVER30-15469265
- published12 Mar 2026
- disclosed10 Mar 2026
Introduced: 10 Mar 2026
CVE-2026-30964 (opens in a new tab)How to fix?
Upgrade Chainguard nextcloud-server-30 to version 30.0.17-r2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nextcloud-server-30 package and not the nextcloud-server-30 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
web-auth/webauthn-lib is an open source set of PHP libraries and a Symfony bundle to allow developers to integrate that authentication mechanism into their web applications. Prior to 5.2.4, when allowed_origins is configured, CheckAllowedOrigins reduces URL-like values to their host component and accepts on host match alone. This makes exact origin policies impossible to express: scheme and port differences are silently ignored. This vulnerability is fixed in 5.2.4.