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Report · SANS ISC Handlers DiaryAbout CVE-2026-102895Published

Exploit Attempts for GPUStack Authentication Bypass (CVE-2026-102895), (Thu, Nov 12th)

Source SANS ISC Handlers Diary

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Authoritative record:CVE-2026-102895· Critical 9.8

Exploited in the wild · KEV due 12 Nov 2026 : upgrade to 2.2.0 now.

Data as of 12 Nov 2026, 12:03 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.19.8
KEV deadline
 US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
Patch
Available – fixed in 2.2.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 4 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: evidence found.

    Listed in CISA KEV 5 days after disclosure

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by GitHub, Inc.

    , 36 days before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. In Threat Radar

    record ingested

    , 6 minutes after disclosure

  4. , 5 days after disclosure

  5. KEV remediation due

    US federal deadline

    , 8 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.

What to do

Upgrade gpustack and gpustack/gpustack to 2.2.0.

Affected software

ProductAffectedFixed in
gpustackgpustackAffected
  • <2.2.0
Fixed in
  • 2.2.0
GitHubgpustack/gpustackpkg:github/gpustack/gpustackOther threatsAffected
  • <2.2.0
Fixed in
  • 2.2.0

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 2.2.0 or later, which addresses this authentication bypass vulnerability. Until upgrading, do not rely on the 'X-Gpustack-Real-IP' header for authentication or access control decisions. Implement network-level controls to restrict access to GPUStack management interfaces to trusted sources. Patch status is confirmed by the release of version 2.2.0.

Description

CVE-2026-102895 is an authentication bypass vulnerability in GPUStack, an open-source software managing GPU clusters for AI workloads. The flaw arises because GPUStack trusts the 'X-Gpustack-Real-IP' header to identify request origin. If this header indicates a loopback IP (127.0.0.1), GPUStack bypasses authentication, allowing attackers to spoof this header and gain unauthorized access. This affects all versions prior to 2.2.0, which was released at the end of June 2026. The vulnerability was publicly disclosed at the end of July 2026, with the CVE assigned on November 4, 2026. Exploit attempts have been observed but no confirmed exploitation in the wild is reported.

References

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