Vulnerability · Published Jul 15, 2026 · Assigned by VulnCheck

CVE-2026-58658GPUStack Unauthenticated Information Disclosure via Worker Endpoints

High 8.2

In plain English

A high-severity missing authentication in gpustack from gpustack. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.5%top 54.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

GPUStack through 2.2.1, fixed in commit 4e20551, contains an unauthenticated information disclosure vulnerability that allows unauthenticated attackers to access sensitive inference logs and modify worker configuration by exploiting unprotected /serveLogs and /debug endpoints on the worker port. Attackers can enumerate model instance IDs to stream serving logs containing prompts and completions, change log levels, and read memory profiling data without any authentication.

Affected products (as reported)

Vendor	Product	Versions
gpustack	gpustack	0 – through 2.2.1

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

References

Researcher Disclosure technical-description, exploit
Patch Commit patch
https://www.vulncheck.com/advisories/gpustack-unauthenticated-information-disclosure-via-worker-endpoints third-party-advisory