CVE-2026-102894
GPUStack is an open-source GPU cluster manager for AI model serving and GPU instance provisioning
- Risk score
- 60/100
- CVSS
- 9.1 v3.1
- Published
- 4 Nov 2026
Open in the live forecast Today's forecast
What to know
- What it is
- GPUStack is an open-source GPU cluster manager for AI model serving and GPU instance provisioning. From 0.7.1 until 2.2.2, the /auth/saml/callback endpoint decoded SAML XML, used its NameID and attributes to resolve or provision a user, and minted a gpustack_session JWT without calling OneLogin_Saml2_Auth.process_resp…
- Affected
- See advisory
- Fix
- Upgrade the product to 2.2.2 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 9.1 critical
- Remotely exploitable without logging in
References
- https://github.com/gpustack/gpustack/commit/705edbe1b5feec63959306daecd640e1c70eced2
- https://github.com/gpustack/gpustack/commit/adc6d82be34e48390720a1361df616e2ea9d6d45
- https://github.com/gpustack/gpustack/pull/5753
- https://github.com/gpustack/gpustack/pull/5923
- https://github.com/gpustack/gpustack/releases/tag/v2.2.2
- https://github.com/gpustack/gpustack/security/advisories/GHSA-62m9-f875-rqw6
Original description
GPUStack is an open-source GPU cluster manager for AI model serving and GPU instance provisioning. From 0.7.1 until 2.2.2, the /auth/saml/callback endpoint decoded SAML XML, used its NameID and attributes to resolve or provision a user, and minted a gpustack_session JWT without calling OneLogin_Saml2_Auth.process_response to verify the signature, issuer, audience, destination, or time conditions. Any network client could submit an identity for an existing user, including an administrator, or provision a new non-administrator account, even when SAML was not configured. Response and Assertion identifiers were not consumed, so captured signed responses could also be replayed. This issue is fixed in version 2.2.2.
Last activity 4 Nov 2026. Patch Forecast updates every hour.