How many CVEs have patched validate_xgrammar_grammar?

4 published CVEs changed validate_xgrammar_grammar in vllm-project/vllm, in 4 distinct patches totalling 23 changed lines, between 2025 and 2026.

What is the latest CVE that changed validate_xgrammar_grammar?

CVE-2026-55574 (vLLM: ReDoS via structured_outputs.regex compiled without timeout in xgrammar and outlines backends), published 2026-07-06, changed lines 284 to 287 of vllm/v1/structured_output/backend_xgrammar.py.

How does validate_xgrammar_grammar compare to the rest of vllm-project/vllm?

vllm-project/vllm has 83 CVEs with a located fix in total; 4 of them changed validate_xgrammar_grammar.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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Validate_xgrammar_grammar

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Validate_xgrammar_grammar

validate_xgrammar_grammar in vllm-project/vllm: Patched by 4 CVEs

vllm-project/vllm

Function

validate_xgrammar_grammar

Name: validate_xgrammar_grammar in vllm-project/vllm: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

vllm/v1/structured_output/backend_xgrammar.py

Last patched July 6, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2025–2026

Years

By CVE publication date

Overview

validate_xgrammar_grammar in vllm-project/vllm was changed by 4 published CVE fixes between 2025 and 2026, in 4 distinct patches that added or removed 23 lines in total.

vllm-project/vllm has 83 CVEs with a located fix in total, so 5% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed validate_xgrammar_grammar, newest first, with the lines each fix touched.

vLLM: ReDoS via structured_outputs.regex compiled without timeout in xgrammar and outlines backends
CVE-2026-55574 · lines 284–287 · +4 −1
High · CVSS 8.7
EPSS 0.6%2026-07-06
vLLM Tool Schema allows DoS via Malformed pattern and type Fields
CVE-2025-48944 · lines 285–290 · +6 −0
Medium · CVSS 6.5
EPSS 0.6%2025-05-30
vLLM allows clients to crash the openai server with invalid regex
CVE-2025-48943 · lines 285–290 · +6 −0
Medium · CVSS 6.5
EPSS 0.5%2025-05-30
vLLM DOS: Remotely kill vllm over http with invalid JSON schema
CVE-2025-48942 · lines 285–290 · +6 −0
Medium · CVSS 6.5
EPSS 0.6%2025-05-30

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1compile_grammarvllm/v1/structured_output/backend_xgrammar.py1 CVEs · 2 patches2026
2__init__vllm/v1/structured_output/backend_xgrammar.py1 CVEs · 1 patches2025

Other hotspots in the repository

Functions in vllm-project/vllm changed by the most CVE fixes.

load_bytes3 CVEs · vllm/multimodal/media/audio.py _resolve_rust_frontend_path3 CVEs · vllm/envs.py load_file3 CVEs · vllm/multimodal/media/audio.py __init__3 CVEs · vllm/model_executor/models/kimi_k25.py _try_resolve_transformers3 CVEs · vllm/model_executor/models/registry.py add_cli_args3 CVEs · vllm/engine/arg_utils.py

All patched functions in vllm-project/vllm

Frequently asked questions

Common questions about CVE fixes to validate_xgrammar_grammar.

How many CVEs have patched validate_xgrammar_grammar?: 4 published CVEs changed validate_xgrammar_grammar in vllm-project/vllm, in 4 distinct patches totalling 23 changed lines, between 2025 and 2026.
What is the latest CVE that changed validate_xgrammar_grammar?: CVE-2026-55574 (vLLM: ReDoS via structured_outputs.regex compiled without timeout in xgrammar and outlines backends), published 2026-07-06, changed lines 284 to 287 of vllm/v1/structured_output/backend_xgrammar.py.
How does validate_xgrammar_grammar compare to the rest of vllm-project/vllm?: vllm-project/vllm has 83 CVEs with a located fix in total; 4 of them changed validate_xgrammar_grammar.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

vllm/v1/structured_output/backend_xgrammar.py on GitHub (opens in a new tab)
All patched functions in vllm-project/vllm
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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On this page

Overview
CVEs that patched it
Other functions in these files
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FAQ
References