Advisory record · GHSA-vhvq-fv9f-wh4q

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

CVSS 4.0, no score published

Published by the GitHub Advisory Database at 6 Feb 2026, 22:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/authzed/spicedbGo>=1.29.3, <1.49.11.49.1
Identifiers
GHSA-vhvq-fv9f-wh4q · GO-2026-4465
Weakness (CWE)
CWE-248
Published
6 Feb 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Affected versions of the SpiceDB package github.com/authzed/spicedb from 1.29.3 before 1.49.1 can crash the process through a LookupResources cursor token whose Sections field holds an invalid relationship string, which triggers a panic during parsing. An attacker needs a gRPC connection to the SpiceDB instance plus a valid token, or the ability to pass a cursor token from outside into SpiceDB, and can then take SpiceDB down, reducing its availability. Upgrade to version 1.49.1 or later; you can also stop clients from setting the optional_cursor field in LookupResources calls.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
Not published None 4.0 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 GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:14 UTC First seen by agentprime
  2. 31 Oct 2026, 14:14 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.