CVE-2025-64529

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/authzed/spicedb/security/advisories/GHSA-pm3x-jrhh-qcr7	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:authzed:spicedb:*:*:*:*:*:*:*:*

History

21 Nov 2025, 13:35

Type	Values Removed	Values Added
References	~~() https://github.com/authzed/spicedb/security/advisories/GHSA-pm3x-jrhh-qcr7 -~~	() https://github.com/authzed/spicedb/security/advisories/GHSA-pm3x-jrhh-qcr7 - Patch, Vendor Advisory
CPE		cpe:2.3:a:authzed:spicedb::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
First Time		Authzed Authzed spicedb

10 Nov 2025, 23:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-11-10 23:15

Updated : 2025-11-21 13:35

NVD link : CVE-2025-64529

Mitre link : CVE-2025-64529

CVE.ORG link : CVE-2025-64529

JSON object : View

Products Affected

authzed

spicedb

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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