CVE-2026-11500: Weaviate authorization bypass via duplicate Static API Keys

CVE-2026-11500 · Severity: medium · CVSS 5 · Published 2026-06-08

Weaviate, an open-source vector database used for AI and search applications, contains a vulnerability in how it handles static API keys. If duplicate API keys are configured, the system may incorrectly authenticate a user as a different account, potentially leading to unauthorized data access or modification. Organizations using static API key authentication should upgrade to the recommended version to ensure proper user isolation.

Technologies: github.com/weaviate/weaviate (Go), Weaviate. Vendors: Go, Weaviate.

Quick answers

Is CVE-2026-11500 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-11500 being exploited in the wild.
How severe is CVE-2026-11500?
Medium severity, with a CVSS score of 5, published 8 June 2026.
Which products and versions are affected?
github.com/weaviate/weaviate (Go) < 1.38.0-rc.0, SEMVER:introduced=0,fixed=1.38.0-rc.0; Weaviate < 1.38.0-rc.0, up to 1.37.7.
Is there a fix for CVE-2026-11500?
Yes. github.com/weaviate/weaviate (Go): upgrade to 1.38.0-rc.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-11500 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-11500?
Check whether you run github.com/weaviate/weaviate (Go) or Weaviate at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/weaviate/weaviate (Go): upgrade to 1.38.0-rc.0 or later
    go get github.com/weaviate/weaviate@v1.38.0-rc.0

Technical details

An improper authorization vulnerability (CWE-285/CWE-639) exists in Weaviate's Static API Key Handler within the `validateConfig` function of `usecases/auth/authentication/apikey/client.go`. The root cause is the failure to reject or uniquely handle duplicate static API keys in the configuration, which can result in a user authenticating as a different identity than intended. An attacker with low privileges (possession of a valid but potentially duplicated key) could exploit this remotely, though the attack complexity is high as it requires specific configuration conditions. The issue is addressed in version 1.38.0-rc.0 by implementing a check to reject duplicate keys during configuration validation.

Affected products

  • Weaviate Weaviate < 1.38.0-rc.0

Identifiers

  • CVE-2026-11500
  • GHSA-jqpm-wf57-qx5c
  • GO-2026-6140

Timeline

  • 2026-06-08: disclosed
  • 2026-06-08: advisory
  • 2026-07-29: patched

References

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