vLLM is an inference and serving engine for large language models. Prior to 0.28.0, the default mirrored multimodal LRU cache can commit a media hash in the frontend sender cache during multimodal rendering and before engine admission, while the engine receiver cache never receives the payload if that request is rejected. A later request reusing the same media hash causes MultiModalProcessorSenderCache to send no payload and MultiModalReceiverCache to reach an assertion with the message "Expected a cached item," producing a shared-service availability failure. This issue is fixed in version 0.28.0.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://github.com/vllm-project/vllm/commit/396204230423b7cc6798300926b8fa30190d26a9 Patch
- https://github.com/vllm-project/vllm/pull/46747 Issue Tracking, Patch
- https://github.com/vllm-project/vllm/pull/51897 Issue Tracking, Patch
- https://github.com/vllm-project/vllm/security/advisories/GHSA-ph3r-5jfg-f84f Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · vllmNVD modified 2026-10-08 01:29
Affected (CPE criteria) 1
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
References 5
- https://github.com/vllm-project/vllm/commit/396204230423b7cc6798300926b8fa30190d26a9 Patch
- https://github.com/vllm-project/vllm/pull/46747 Issue Tracking, Patch
- https://github.com/vllm-project/vllm/pull/51897 Issue Tracking, Patch
- https://github.com/vllm-project/vllm/releases/tag/v0.28.0 Release Notes
- https://github.com/vllm-project/vllm/security/advisories/GHSA-ph3r-5jfg-f84f Mitigation, Vendor Advisory