GHSA-vhvq-fv9f-wh4q

Source

https://github.com/advisories/GHSA-vhvq-fv9f-wh4q

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-vhvq-fv9f-wh4q/GHSA-vhvq-fv9f-wh4q.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-vhvq-fv9f-wh4q

Aliases

GO-2026-4465

Downstream

CGA (4)

Published

2026-02-06T22:30:52Z

Modified

2026-09-10T03:50:35Z

Severity

1.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U CVSS Calculator

Summary

LookupResources Cursor section tampering can crash SpiceDB process via tuple.MustParse panic

Details

Description

A malformed or tampered-with LookupResources Cursor token can cause a panic in the SpiceDB process if it fails to parse. If an attacker were able to make requests to a SpiceDB instance, they could affect its availability.

Reproduction

If one was to take a cursor from a LookupResources call, decode it according to the logic that SpiceDB uses, and modify the Sections field to include an invalid relationship string, the process will panic.

Impact

An attacker would need both the ability to create a gRPC connection to your SpiceDB instance and a valid token, or else the ability to pass a cursor token from outside your application through to your SpiceDB instance.

If an attacker had this ability, they could bring down SpiceDB instances, reducing the availability of SpiceDB and any service that depends on it.

Mechanism

The SpiceDB process does not validate the contents of this Sections component of the Cursor message. In affected versions, it uses a parsing function that calls panic if the value cannot be parsed as a relationship.

Fix

This issue was fixed in https://github.com/authzed/spicedb/pull/2878.

Remediations

Prevent client control of the optional_cursor field in LookupResources calls
Upgrade to an unaffected version

Database specific

{
    "cwe_ids":  [
        "CWE-248"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-02-06T22:30:52Z",
    "nvd_published_at":  null,
    "severity":  "LOW"
}

References

Affected packages

Go / github.com/authzed/spicedb

Package

Name: github.com/authzed/spicedb; View open source insights on deps.dev
Purl: pkg:golang/github.com/authzed/spicedb

Affected ranges

Type: SEMVER
Events: Introduced

1.29.3

Fixed

1.49.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-vhvq-fv9f-wh4q/GHSA-vhvq-fv9f-wh4q.json"