Use of Weak Hash Affecting soroban-poseidon package, versions <25.0.1
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-RUST-SOROBANPOSEIDON-15602615
- published15 Mar 2026
- disclosed12 Mar 2026
- creditUnknown
Introduced: 12 Mar 2026
NewCVE-2026-32129 (opens in a new tab)How to fix?
Upgrade soroban-poseidon to version 25.0.1 or higher.
Overview
Affected versions of this package are vulnerable to Use of Weak Hash in the PoseidonSponge process. An attacker can cause hash collisions by providing input vectors with fewer elements than the sponge rate, resulting in identical hash outputs for different input sets due to implicit zero-padding.