CVE-2026-73556

01/תיאור (מקור, אנגלית)

vLLM is an inference and serving engine for large language models. Prior to 0.26.0, the structured_outputs.regex parameter in vllm/v1/structured_output/backend_lm_format_enforcer.py is passed to lmformatenforcer.RegexParser without compile_regex_with_timeout or validation in validate_structured_output_request_lm_format_enforcer, allowing an unauthenticated /v1/completions request against the lm-format-enforcer backend to consume a CPU core and stall the structured-output engine path with a catastrophic regular expression. This issue is fixed in version 0.26.0.

02/מוצרים מושפעים

vllm: vllm

03/קישורים5

• github.com/vllm-project/vllm/security/advisories/GHSA-48jh-3gj‮… Vendor Advisory
• github.com/vllm-project/vllm/security/advisories/GHSA-48jh-3gj‮… Vendor Advisory
• github.com/vllm-project/vllm/commit/c9a788eedc412acceaa5112e0d‮… Patch
• github.com/vllm-project/vllm/pull/47595 Issue TrackingPatch
• github.com/vllm-project/vllm/releases/tag/v0.26.0 Release Notes