CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-73556

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.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.005

EPSS Ranking 42.1%

CVSS Severity

CVSS v3 Score 5.3

References

Products affected by CVE-2026-73556

Vllm » Vllm » Version: 0.1.0

cpe:2.3:a:vllm:vllm:0.1.0
Vllm » Vllm » Version: 0.1.1

cpe:2.3:a:vllm:vllm:0.1.1
Vllm » Vllm » Version: 0.1.2

cpe:2.3:a:vllm:vllm:0.1.2
Vllm » Vllm » Version: 0.1.3

cpe:2.3:a:vllm:vllm:0.1.3
Vllm » Vllm » Version: 0.1.4

cpe:2.3:a:vllm:vllm:0.1.4
Vllm » Vllm » Version: 0.1.5

cpe:2.3:a:vllm:vllm:0.1.5
Vllm » Vllm » Version: 0.1.6

cpe:2.3:a:vllm:vllm:0.1.6
Vllm » Vllm » Version: 0.1.7

cpe:2.3:a:vllm:vllm:0.1.7
Vllm » Vllm » Version: 0.10.0

cpe:2.3:a:vllm:vllm:0.10.0
Vllm » Vllm » Version: 0.10.1

cpe:2.3:a:vllm:vllm:0.10.1
Vllm » Vllm » Version: 0.10.1.1

cpe:2.3:a:vllm:vllm:0.10.1.1
Vllm » Vllm » Version: 0.10.2

cpe:2.3:a:vllm:vllm:0.10.2
Vllm » Vllm » Version: 0.11.0

cpe:2.3:a:vllm:vllm:0.11.0
Vllm » Vllm » Version: 0.11.1

cpe:2.3:a:vllm:vllm:0.11.1
Vllm » Vllm » Version: 0.11.2

cpe:2.3:a:vllm:vllm:0.11.2
Vllm » Vllm » Version: 0.12.0

cpe:2.3:a:vllm:vllm:0.12.0
Vllm » Vllm » Version: 0.13.0

cpe:2.3:a:vllm:vllm:0.13.0
Vllm » Vllm » Version: 0.14.0

cpe:2.3:a:vllm:vllm:0.14.0
Vllm » Vllm » Version: 0.14.1

cpe:2.3:a:vllm:vllm:0.14.1
Vllm » Vllm » Version: 0.15.0

cpe:2.3:a:vllm:vllm:0.15.0
Vllm » Vllm » Version: 0.15.1

cpe:2.3:a:vllm:vllm:0.15.1
Vllm » Vllm » Version: 0.15.2

cpe:2.3:a:vllm:vllm:0.15.2
Vllm » Vllm » Version: 0.16.0

cpe:2.3:a:vllm:vllm:0.16.0
Vllm » Vllm » Version: 0.16.1

cpe:2.3:a:vllm:vllm:0.16.1
Vllm » Vllm » Version: 0.17.0

cpe:2.3:a:vllm:vllm:0.17.0
Vllm » Vllm » Version: 0.17.1

cpe:2.3:a:vllm:vllm:0.17.1
Vllm » Vllm » Version: 0.17.2

cpe:2.3:a:vllm:vllm:0.17.2
Vllm » Vllm » Version: 0.18.0

cpe:2.3:a:vllm:vllm:0.18.0
Vllm » Vllm » Version: 0.18.1

cpe:2.3:a:vllm:vllm:0.18.1
Vllm » Vllm » Version: 0.18.2

cpe:2.3:a:vllm:vllm:0.18.2
Vllm » Vllm » Version: 0.19.0

cpe:2.3:a:vllm:vllm:0.19.0
Vllm » Vllm » Version: 0.19.1

cpe:2.3:a:vllm:vllm:0.19.1
Vllm » Vllm » Version: 0.19.2

cpe:2.3:a:vllm:vllm:0.19.2
Vllm » Vllm » Version: 0.2.0

cpe:2.3:a:vllm:vllm:0.2.0
Vllm » Vllm » Version: 0.2.1

cpe:2.3:a:vllm:vllm:0.2.1
Vllm » Vllm » Version: 0.2.2

cpe:2.3:a:vllm:vllm:0.2.2
Vllm » Vllm » Version: 0.2.3

cpe:2.3:a:vllm:vllm:0.2.3
Vllm » Vllm » Version: 0.2.4

cpe:2.3:a:vllm:vllm:0.2.4
Vllm » Vllm » Version: 0.2.5

cpe:2.3:a:vllm:vllm:0.2.5
Vllm » Vllm » Version: 0.2.6

cpe:2.3:a:vllm:vllm:0.2.6
Vllm » Vllm » Version: 0.2.7

cpe:2.3:a:vllm:vllm:0.2.7
Vllm » Vllm » Version: 0.20.0

cpe:2.3:a:vllm:vllm:0.20.0
Vllm » Vllm » Version: 0.20.1

cpe:2.3:a:vllm:vllm:0.20.1
Vllm » Vllm » Version: 0.20.2

cpe:2.3:a:vllm:vllm:0.20.2
Vllm » Vllm » Version: 0.21.0

cpe:2.3:a:vllm:vllm:0.21.0
Vllm » Vllm » Version: 0.21.1

cpe:2.3:a:vllm:vllm:0.21.1
Vllm » Vllm » Version: 0.22.0

cpe:2.3:a:vllm:vllm:0.22.0
Vllm » Vllm » Version: 0.22.1

cpe:2.3:a:vllm:vllm:0.22.1
Vllm » Vllm » Version: 0.23.0

cpe:2.3:a:vllm:vllm:0.23.0
Vllm » Vllm » Version: 0.23.1

cpe:2.3:a:vllm:vllm:0.23.1
Vllm » Vllm » Version: 0.24.0

cpe:2.3:a:vllm:vllm:0.24.0
Vllm » Vllm » Version: 0.25.0

cpe:2.3:a:vllm:vllm:0.25.0
Vllm » Vllm » Version: 0.25.1

cpe:2.3:a:vllm:vllm:0.25.1
Vllm » Vllm » Version: 0.3.0

cpe:2.3:a:vllm:vllm:0.3.0
Vllm » Vllm » Version: 0.3.1

cpe:2.3:a:vllm:vllm:0.3.1
Vllm » Vllm » Version: 0.3.2

cpe:2.3:a:vllm:vllm:0.3.2
Vllm » Vllm » Version: 0.3.3

cpe:2.3:a:vllm:vllm:0.3.3
Vllm » Vllm » Version: 0.4.0

cpe:2.3:a:vllm:vllm:0.4.0
Vllm » Vllm » Version: 0.4.1

cpe:2.3:a:vllm:vllm:0.4.1
Vllm » Vllm » Version: 0.4.2

cpe:2.3:a:vllm:vllm:0.4.2
Vllm » Vllm » Version: 0.4.3

cpe:2.3:a:vllm:vllm:0.4.3
Vllm » Vllm » Version: 0.5.0

cpe:2.3:a:vllm:vllm:0.5.0
Vllm » Vllm » Version: 0.5.1

cpe:2.3:a:vllm:vllm:0.5.1
Vllm » Vllm » Version: 0.5.2

cpe:2.3:a:vllm:vllm:0.5.2
Vllm » Vllm » Version: 0.5.3

cpe:2.3:a:vllm:vllm:0.5.3
Vllm » Vllm » Version: 0.5.4

cpe:2.3:a:vllm:vllm:0.5.4
Vllm » Vllm » Version: 0.5.5

cpe:2.3:a:vllm:vllm:0.5.5
Vllm » Vllm » Version: 0.6.0

cpe:2.3:a:vllm:vllm:0.6.0
Vllm » Vllm » Version: 0.6.1

cpe:2.3:a:vllm:vllm:0.6.1
Vllm » Vllm » Version: 0.6.2

cpe:2.3:a:vllm:vllm:0.6.2
Vllm » Vllm » Version: 0.6.3

cpe:2.3:a:vllm:vllm:0.6.3
Vllm » Vllm » Version: 0.6.4

cpe:2.3:a:vllm:vllm:0.6.4
Vllm » Vllm » Version: 0.6.5

cpe:2.3:a:vllm:vllm:0.6.5
Vllm » Vllm » Version: 0.6.6

cpe:2.3:a:vllm:vllm:0.6.6
Vllm » Vllm » Version: 0.7.0

cpe:2.3:a:vllm:vllm:0.7.0
Vllm » Vllm » Version: 0.7.1

cpe:2.3:a:vllm:vllm:0.7.1
Vllm » Vllm » Version: 0.7.2

cpe:2.3:a:vllm:vllm:0.7.2
Vllm » Vllm » Version: 0.7.3

cpe:2.3:a:vllm:vllm:0.7.3
Vllm » Vllm » Version: 0.8.0

cpe:2.3:a:vllm:vllm:0.8.0
Vllm » Vllm » Version: 0.8.1

cpe:2.3:a:vllm:vllm:0.8.1
Vllm » Vllm » Version: 0.8.2

cpe:2.3:a:vllm:vllm:0.8.2
Vllm » Vllm » Version: 0.8.3

cpe:2.3:a:vllm:vllm:0.8.3
Vllm » Vllm » Version: 0.8.4

cpe:2.3:a:vllm:vllm:0.8.4
Vllm » Vllm » Version: 0.8.5

cpe:2.3:a:vllm:vllm:0.8.5
Vllm » Vllm » Version: 0.9.0

cpe:2.3:a:vllm:vllm:0.9.0
Vllm » Vllm » Version: 0.9.0.1

cpe:2.3:a:vllm:vllm:0.9.0.1
Vllm » Vllm » Version: 0.9.1

cpe:2.3:a:vllm:vllm:0.9.1
Vllm » Vllm » Version: 0.9.2

cpe:2.3:a:vllm:vllm:0.9.2

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-73556

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