CVE-2026-32322 is a medium-severity vulnerability affecting the soroban-sdk Rust SDK for Soroban contracts, specifically versions prior to 22.0.11, 23.5.3, and 25.3.0. The flaw lies in the Fr (scalar field) type comparison logic, where values are compared using their raw U256 representation without proper modulus reduction, causing mathematically equal elements to be incorrectly treated as unequal. Exploitation requires an attacker to supply crafted Fr values through contract inputs, potentially leading to incorrect authorization decisions or validation bypasses in security-critical smart contract logic. With a CVSS score of 5.3, the attack vector is network-based with low complexity, resulting in a low integrity impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion, reflected by its low EPSS score and inactive status on the Hot List.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 22.0.11CPE matchmatch criteria | cpe:2.3:a:stellar:rs-soroban-sdk:*:*:*:*:*:rust:*:* | ||
>= 23.0.0, < 23.5.3CPE matchmatch criteria | cpe:2.3:a:stellar:rs-soroban-sdk:*:*:*:*:*:rust:*:* | ||
>= 25.0.0, < 25.3.0CPE matchmatch criteria | cpe:2.3:a:stellar:rs-soroban-sdk:*:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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