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CVE-2026-105752

3.1 · LOW

vLLM is an inference and serving engine for large language models.

Published Oct 5, 2026vllmCWE-200EPSS 0.22%

Overview

CVE-2026-105752 is a low-severity vulnerability affecting vllm vllm. It was published on October 5, 2026 and has a CVSS 3.1 base score of 3.1 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

vLLM is an inference and serving engine for large language models. Prior to 0.30.0, Harmony tool continuations submitted through "POST /v1/responses" requests rebuild the next-turn engine input without preserving the cache_salt value, placing the continuation prefix in the global unsalted cache namespace even when the caller enabled salting. On deployments with prefix caching enabled, which is the default, an authenticated tenant who can reconstruct a victim's low-entropy post-tool history can submit the same continuation and use the cached_tokens_per_turn count to determine whether the prefix was previously processed, defeating the intended tenant isolation of salted prefix caching. This issue is fixed in version 0.30.0.

Remediation

Check the references section for vendor advisories and patches from vllm. Update vllm to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
vllmvllm>= 0, < 0.30.0Affected

References

GitHubgithub.com/vllm-project/vllm/commit/6a2a2bb02b563b83f946012959fd3927984d072aGitHubgithub.com/vllm-project/vllm/pull/50195GitHubgithub.com/vllm-project/vllm/pull/51818GitHubgithub.com/vllm-project/vllm/releases/tag/v0.30.0GitHubgithub.com/vllm-project/vllm/security/advisories/GHSA-935w-9g4m-p28p

How CyberStrike helps

Frequently asked questions

What is CVE-2026-105752?

CVE-2026-105752 is a low-severity vulnerability affecting vllm vllm. It was published on October 5, 2026 and has a CVSS 3.1 base score of 3.1 (LOW).

How severe is CVE-2026-105752?

This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-105752?

Check the references section for vendor advisories and patches from vllm. Update vllm to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-105752?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-105752 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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