CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:NCVE-2026-73558
Medium (5.3) in vllm vllm. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in vllm 0.27.0.
vLLM is an inference and serving engine for large language models. Prior to 0.27.0, an integer overflow in blockIdx.x * 2 * d in activation_kernels.cu can cause act_and_mul_kernel to consume another batched user's input, allowing a request processed in the same inference batch to receive a partial or complete copy of another user's inference result. This issue is fixed in version 0.27.0.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
- CWE
- CWE-190
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vllm:vllm
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-7m6h-x95x-82q5 | PyPI | vllm | <0.27.0 | 0.27.0 |
| PYSEC-2026-3935 | PyPI | vllm | <0.27.0 | 0.27.0 |
References
- https://github.com/vllm-project/vllm/commit/451227cb3ff07989698fed982c2d3e4300257924
- https://github.com/vllm-project/vllm/issues/42860
- https://github.com/vllm-project/vllm/pull/49660
- https://github.com/vllm-project/vllm/releases/tag/v0.27.0
- https://github.com/vllm-project/vllm/security/advisories/GHSA-7m6h-x95x-82q5