Function Call With Incorrect Order of Arguments Affecting flask package, versions [3.1.0,3.1.1)
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-PYTHON-FLASK-10123407
- published14 May 2025
- disclosed13 May 2025
- creditBrax94
Introduced: 13 May 2025
NewCVE-2025-47278 (opens in a new tab)How to fix?
Upgrade flask to version 3.1.1 or higher.
Overview
Affected versions of this package are vulnerable to Function Call With Incorrect Order of Arguments due to the incorrect handling of the SECRET_KEY_FALLBACKS configuration. An attacker can exploit this to sign sessions with stale keys, potentially impeding the transition to fresher keys.
note: This is only exploitable if the site has opted-in to use key rotation by setting SECRET_KEY_FALLBACKS.