Improper Validation of Specified Type of Input Affecting bitsery package, versions [,5.2.5)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-CONAN-BITSERY-17038501
- published29 May 2026
- disclosed26 May 2026
- credittrebledj
Introduced: 26 May 2026
NewCVE-2026-9521 (opens in a new tab)How to fix?
Upgrade bitsery to version 5.2.5 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via the loadFromSharedState function. An attacker can cause unauthorized disclosure of information, modification of data, or disruption of service by supplying specially crafted input to this function.