Is CVE-2026-102894 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-102894 being exploited in the wild.

How severe is CVE-2026-102894?

Critical severity, with a CVSS score of 9.1, published 4 November 2026.

Which products and versions are affected?

gpustack (PyPI) >= 0.7.1, < 2.2.2, ECOSYSTEM:introduced=0.7.1,fixed=2.2.2; GPUStack 0.7.1 to 2.2.1.

Is there a fix for CVE-2026-102894?

Yes. gpustack (PyPI): upgrade to 2.2.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-102894 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-102894?

Check whether you run gpustack (PyPI) or GPUStack 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.

CVE-2026-102894: GPUStack SAML signature verification bypass in /auth/saml/callback

Q: Is there a fix for CVE-2026-102894?

Yes. gpustack (PyPI): upgrade to 2.2.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-102894 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2026-102894?

Check whether you run gpustack (PyPI) or GPUStack 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.

CVE-2026-102894 · Severity: critical · CVSS 9.1 · Published 2026-11-04

GPUStack is an open-source GPU cluster manager for AI model serving. The SAML authentication endpoint accepts login requests without verifying cryptographic signatures, allowing an attacker to forge login credentials for any existing user, including administrators, or create new accounts. This could give an attacker complete control over the system and any GPUs it manages.

Technologies: gpustack (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2026-102894 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-102894 being exploited in the wild.
How severe is CVE-2026-102894?: Critical severity, with a CVSS score of 9.1, published 4 November 2026.
Which products and versions are affected?: gpustack (PyPI) >= 0.7.1, < 2.2.2, ECOSYSTEM:introduced=0.7.1,fixed=2.2.2; GPUStack 0.7.1 to 2.2.1.
Is there a fix for CVE-2026-102894?: Yes. gpustack (PyPI): upgrade to 2.2.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-102894 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-102894?: Check whether you run gpustack (PyPI) or GPUStack 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

gpustack (PyPI): upgrade to 2.2.2 or later
```
pip install "gpustack>=2.2.2"
```

Technical details

The /auth/saml/callback endpoint parsed SAML XML responses and extracted NameID and attributes without calling OneLogin_Saml2_Auth.process_response(), skipping verification of the signature, issuer, audience, destination, and time conditions. An unauthenticated attacker could submit a hand-crafted SAML response to impersonate existing users or provision new accounts, even when SAML was not configured. Signed responses could be replayed since assertion identifiers were not consumed.

Affected products

GPUStack 0.7.1 to 2.2.1

Identifiers

CVE-2026-102894
GHSA-62m9-f875-rqw6

Timeline

2026-11-04: disclosed

References

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