GHSA-PM3X-JRHH-QCR7
Vulnerability from github – Published: 2025-11-13 22:58 – Updated: 2026-05-14 20:54
VLAI
Summary
SpiceDB WriteRelationships fails silently if payload is too big
Details
Impact
Users who
1. use the exclusion operator somewhere in their authorization schema
1. have configured their SpiceDB server such that --write-relationships-max-updates-per-call is bigger than 6500
1. 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
WriteRelationshipscall, when in reality that call failed, - receive incorrect permission check results, if those relationships had to be read to resolve the relation involving the exclusion
Patches
Upgrade to v.145.2.
Workarounds
Set --write-relationships-max-updates-per-call to 1000.
Severity
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/authzed/spicedb"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.45.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-64529"
],
"database_specific": {
"cwe_ids": [
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2025-11-13T22:58:20Z",
"nvd_published_at": "2025-11-10T23:15:42Z",
"severity": "LOW"
},
"details": "### Impact\n\nUsers who \n1. use the exclusion operator somewhere in their authorization schema\n1. have configured their SpiceDB server such that `--write-relationships-max-updates-per-call` is bigger than 6500\n1. issue calls to WriteRelationships with a large enough number of updates that cause the payload to be bigger than what their datastore allows\n\nwill \n\n1. receive a successful response from their `WriteRelationships` call, when in reality that call failed,\n2. receive incorrect permission check results, if those relationships had to be read to resolve the relation involving the exclusion\n\n### Patches\n\nUpgrade to v.145.2.\n\n### Workarounds\n\nSet `--write-relationships-max-updates-per-call` to `1000`.",
"id": "GHSA-pm3x-jrhh-qcr7",
"modified": "2026-05-14T20:54:58Z",
"published": "2025-11-13T22:58:20Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/authzed/spicedb/security/advisories/GHSA-pm3x-jrhh-qcr7"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64529"
},
{
"type": "WEB",
"url": "https://github.com/authzed/spicedb/commit/d0cd103a92cc1915636733fb1d1730c2c7f74851"
},
{
"type": "PACKAGE",
"url": "https://github.com/authzed/spicedb"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "SpiceDB WriteRelationships fails silently if payload is too big"
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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