CVE-2026-54234
- Source
- https://cve.org/CVERecord?id=CVE-2026-54234
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54234.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-54234
- Aliases
-
- GHSA-8wr5-jm2h-8r4f
- Downstream
- Published
- 2026-07-06T19:49:20.481Z
- Modified
- 2026-07-09T04:02:06.068855414Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- vLLM: Remote DoS in vLLM via Invalid Recovered Token Reinjection
- Details
-
vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to 0.24.0, a frontend-legal multi-request speculative decoding workload can cause the rejection sampler to produce a recovered token equal to the model vocabulary size boundary value, which is then converted to negative one when the engine selects the next live token for a request and is written back into the drafter's input ids; that out-of-vocabulary value is later consumed by the model's embedding and attention path and crashes the engine worker with a GPU device-side assertion. The same triggering request sequence is reachable through the public gRPC Generate and Abort endpoints, so a remote client that can send generation requests can crash the shared engine worker, aborting concurrent requests and causing a service-wide denial of service for other clients of the deployment until the worker is restarted. This issue is fixed in version 0.24.0.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54234.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-1284", "CWE-20" ] }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54234.json
- https://github.com/vllm-project/vllm/security/advisories/GHSA-8wr5-jm2h-8r4f
- https://nvd.nist.gov/vuln/detail/CVE-2026-54234
- https://github.com/vllm-project/vllm/commit/8a5cf1ccd65e8ac7635c402c1ec0b08988bc26ca
- https://github.com/vllm-project/vllm/pull/44744
Affected packages
Git / github.com/vllm-project/vllm
Affected ranges
- Type
- GIT
- Repo
- https://github.com/vllm-project/vllm
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
{ "cpe": "cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*", "source": [ "CPE_RANGE", "REFERENCES" ], "extracted_events": [ { "introduced": "0" }, { "fixed": "0.24.0" } ] }