Improperly Controlled Modification of Dynamically-Determined Object Attributes Affecting flowise package, versions <3.1.3
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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- published9 Aug 2026
- disclosed4 Aug 2026
- creditUnknown
Introduced: 4 Aug 2026
NewCVE-2026-69258 (opens in a new tab)How to fix?
Upgrade flowise to version 3.1.3 or higher.
Overview
flowise is a Flowiseai Server
Affected versions of this package are vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes via the overrideConfig process. An attacker can inject arbitrary properties into the flow execution context by sending crafted requests to the unauthenticated prediction API endpoint. This enables manipulation of session identifiers, chat history, and template variables, potentially resulting in session hijacking, cross-session data access, and unauthorized modification of flow behavior.