CVEvulnerability
CVE-2026-73555
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-08-13
- Last modified
- 2026-10-02
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-209
Description
vLLM is an inference and serving engine for large language models. Prior to 0.26.0, the validation_exception_handler in vllm/entrypoints/openai/server_utils.py converts FastAPI RequestValidationError objects with str(exc), and sanitize_message in vllm/entrypoints/utils.py does not remove traceback-style file paths, allowing unauthenticated malformed JSON requests to /v1/chat/completions, /v1/completions, /tokenize, and /detokenize to disclose the OS username, home and virtual-environment paths, Python version, internal package structure, line numbers, and endpoint handler names. This issue is fixed in version 0.26.0.
Affected configurations
• vllm vllm (< 0.26.0)
Related
Weakness · CWE (1)
- CWE-209 Generation of Error Message Containing Sensitive Information weakness
References
- https://github.com/vllm-project/vllm/commit/e87521626febe2763f997691d1599de4175f4324 Patch
- https://github.com/vllm-project/vllm/pull/46415 Issue Tracking, Patch
- https://github.com/vllm-project/vllm/releases/tag/v0.26.0 Release Notes
- https://github.com/vllm-project/vllm/security/advisories/GHSA-hwrm-c4cx-rf4j Mitigation, Vendor Advisory