{"cve":"CVE-2025-64529","nvd":{"published":"2025-11-10T23:15:42.170","modified":"2026-06-17T09:54:32.647","status":"Analyzed","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`.","cvss_v4":{"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","score":2.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","score":6.5},"cwes":["CWE-770"],"references":["https://github.com/authzed/spicedb/security/advisories/GHSA-pm3x-jrhh-qcr7"],"products":["authzed:spicedb"],"source":"nvd","synced_at":"2026-10-19T22:14:53.307938015+00:00"},"epss":{"cve":"CVE-2025-64529","score":0.00264,"percentile":0.18315,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pm3x-jrhh-qcr7","url":"https://osv.dev/vulnerability/GHSA-pm3x-jrhh-qcr7","summary":"SpiceDB WriteRelationships fails silently if payload is too big","modified":"2026-05-14T21:04:47.087193Z","packages":[{"ecosystem":"Go","name":"github.com/authzed/spicedb","purl":"pkg:golang/github.com/authzed/spicedb","ranges":["<1.45.2"],"fixed":["1.45.2"]}]},{"id":"GO-2025-4120","url":"https://osv.dev/vulnerability/GO-2025-4120","summary":"SpiceDB WriteRelationships fails silently if payload is too big in github.com/authzed/spicedb","modified":"2026-03-03T04:57:36.823135Z","packages":[{"ecosystem":"Go","name":"github.com/authzed/spicedb","purl":"pkg:golang/github.com/authzed/spicedb","ranges":["<1.45.2"],"fixed":["1.45.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}