{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32322", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-11T21:16:21.661Z", "datePublished": "2026-03-12T21:39:38.022Z", "dateUpdated": "2026-03-13T15:00:09.804Z"}, "containers": {"cna": {"title": "soroban-sdk: `Fr` scalar field equality comparison bypasses modular reduction", "problemTypes": [{"descriptions": [{"cweId": "CWE-697", "lang": "en", "description": "CWE-697: Incorrect Comparison", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/stellar/rs-soroban-sdk/security/advisories/GHSA-x2hw-px52-wp4m", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/stellar/rs-soroban-sdk/security/advisories/GHSA-x2hw-px52-wp4m"}], "affected": [{"vendor": "stellar", "product": "rs-soroban-sdk", "versions": [{"version": ">= 25.0.0, < 25.3.0", "status": "affected"}, {"version": ">= 23.0.0, < 23.5.3", "status": "affected"}, {"version": "< 22.0.11", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-12T21:39:38.022Z"}, "descriptions": [{"lang": "en", "value": "soroban-sdk is a Rust SDK for Soroban contracts. Prior to 22.0.11, 23.5.3, and 25.3.0, The Fr (scalar field) types for BN254 and BLS12-381 in soroban-sdk compared values using their raw U256 representation without first reducing modulo the field modulus r. This caused mathematically equal field elements to compare as not-equal when one or both values were unreduced (i.e., >= r). The vulnerability requires an attacker to supply crafted Fr values through contract inputs, and compare them directly without going through host-side arithmetic operations. Smart contracts that rely on Fr equality checks for security-critical logic could produce incorrect results. The impact depends on how the affected contract uses Fr equality comparisons, but can result in incorrect authorization decisions or validation bypasses in contracts that perform equality checks on user-supplied scalar values. This vulnerability is fixed in 22.0.11, 23.5.3, and 25.3.0."}], "source": {"advisory": "GHSA-x2hw-px52-wp4m", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-13T14:59:43.183207Z", "id": "CVE-2026-32322", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-13T15:00:09.804Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[25.0.0,25.3.0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[23.0.0,23.5.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,22.0.11)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "rs-soroban-sdk", "source": "cna", "vendor": "stellar"}, "product": "rs-soroban-sdk", "vendor": "stellar"}], "analysis": {"en": {"generated_at": "2026-03-19T15:04:44.623055+00:00", "value": {"mitigation_remediation": ["Upgrade soroban-sdk to version 22.0.11 or later (or 23.5.3/25.3.0) where the bug is fixed.", "If updating is not immediately possible, audit contracts for equality checks on Fr values and replace them with reduced comparisons or alternative validation logic.", "Notify developers and stakeholders about the breach of logic and monitor contract behavior for any anomalous authorization failures."], "summary": {"action": "Patch", "impact": "Logic Bypass via Incorrect Equality Comparison"}, "threat_synthesis": {"affected_systems": "The bug affects the stellar:rs-soroban-sdk package, specifically the Fr types for the BN254 and BLS12\u2011381 elliptic curves. Versions prior to 22.0.11, 23.5.3, and 25.3.0 are impacted. All other versions and products were not listed as affected.", "description_and_impact": "The vulnerability in soroban-sdk\u2019s Fr scalar field types causes equality checks to compare raw U256 values without reducing modulo the field modulus.\nConsequently, two mathematically equal field elements can evaluate as not\u2011equal when one or both values are unreduced (i.e., greater than or equal to the modulus). Contracts that rely on these equality checks for security\u2011critical decisions\u2014such as authorization or validation\u2014can therefore produce incorrect results, potentially allowing an attacker to bypass expected restrictions or cause erroneous behavior. This issue represents a functional logic vulnerability, not an immediate code\u2011execution flaw. The weakness corresponds to CWE\u2011697, \"Incorrect Verification of Cryptographic Operation Results.\"", "risk_and_exploitability": "The CVSS base score for this issue is 5.3, indicating moderate severity. EPSS indicates less than 1\u202f% likelihood of exploitation, and the vulnerability is not listed in the CISA KEV catalog, suggesting it is not actively exploited at the time of this advisory. Exploitation requires an attacker to supply crafted Fr values through contract inputs and directly invoke the vulnerable equality check without the host performing arithmetic with reduction. Thus, any contract that uses Fr equality for critical logic is a potential target; otherwise the flaw remains a local logic issue within the contract\u2019s execution context."}}}}, "created": "2026-03-13T09:49:30.036757+00:00", "updated": "2026-03-23T10:00:03.755511+00:00", "vendors": ["stellar", "stellar$PRODUCT$rs-soroban-sdk"]}