CVE-2026-102894: gpustack · Authentication Bypass by Capture-replay
Affects gpustackSource CVE Database V5
Not known to be exploited · CVSS 9.1 Critical : upgrade to 2.2.2 as a priority.
Data as of 4 Nov 2026, 23:44 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 9.1 |
|---|
- Patch
- Available – fixed in 2.2.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 4 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.
What to do
Upgrade gpustack and gpustack/gpustack to 2.2.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| gpustackgpustack | Affected
| Fixed in
|
GitHubgpustack/gpustackpkg:github/gpustack/gpustackOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade GPUStack to version 2.2.2 or later, where the SAML authentication process properly verifies signatures and security conditions. No other mitigations are indicated or required as the fix addresses the root cause.
Description
CVE-2026-102894 is a critical authentication bypass vulnerability in GPUStack versions from 0.7.1 up to but not including 2.2.2. The vulnerability occurs because the /auth/saml/callback endpoint fails to verify SAML response signatures and related security conditions, allowing attackers to impersonate existing users or provision new accounts without proper authentication. This flaw is fixed in version 2.2.2.
References
- github.com/gpustack/gpustack/security/advisories/GHSA-62m9-f875-rqw6 (opens in a new tab)
- github.com/gpustack/gpustack/pull/5753 (opens in a new tab)
- github.com/gpustack/gpustack/pull/5923 (opens in a new tab)
- github.com/gpustack/gpustack/commit/705edbe1b5feec63959306daecd640e1c70eced2 (opens in a new tab)
- github.com/gpustack/gpustack/commit/adc6d82be34e48390720a1361df616e2ea9d6d45 (opens in a new tab)
- github.com/gpustack/gpustack/releases/tag/v2.2.2 (opens in a new tab)