SpiceDB’s WriteRelationships fails silently if payload is too big_CVE-2025-64529

{
    "lastseen": "",
    "description": "SpiceDB is an open source database system for creating and managing security-critical application permissions. In versions prior to 1.45.2, users who use the exclusion operator somewhere in their authorization schema; have configured their SpiceDB server such that `--write-relationships-max-updates-per-call` is bigger than 6500; and issue calls to WriteRelationships with a large enough number of updates that cause the payload to be bigger than what their datastore allows; will receive a successful response from their `WriteRelationships` call, when in reality that call failed, and receive incorrect permission check results, if those relationships had to be read to resolve the relation involving the exclusion. Version 1.45.2 contains a patch for the issue. As a workaround, set `--write-relationships-max-updates-per-call` to `1000`.",
    "published": "2025-11-10T22:28:51.589Z",
    "modified": "2025-11-10T22:28:51.589Z",
    "type": "cve",
    "title": "SpiceDB's WriteRelationships fails silently if payload is too big",
    "source": "GitHub_M",
    "references": "https://github.com/authzed/spicedb/security/advisories/GHSA-pm3x-jrhh-qcr7",
    "id": "CVE-2025-64529",
    "bulletinFamily": "",
    "cwe": [
        "CWE-770"
    ],
    "cvelist": null,
    "sourceData": "authzed spicedb < 1.45.2",
    "sourceHref": "",
    "cvss": {
        "score": 2.7,
        "severity": "LOW",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "spicedb",
    "version": "< 1.45.2",
    "vendor": "authzed",
    "ai_description": "",
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    "ai_score": 0
}