Resource Exhaustion Affecting vllm-cu129 package, versions <0.26.0-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-VLLMCU129-19633980
- published6 Sept 2026
- disclosed13 Aug 2026
Introduced: 13 Aug 2026
CVE-2026-73556 (opens in a new tab)How to fix?
Upgrade Minimos:latest vllm-cu129 to version 0.26.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream vllm-cu129 package and not the vllm-cu129 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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.
References
- https://www.cve.org/CVERecord?id=CVE-2026-73556
- https://github.com/advisories/GHSA-48jh-3gj7-fg8v
- https://osv.dev/vulnerability/MINI-hhc6-w7j8-737j
- https://osv.dev/vulnerability/CVE-2026-73556
- https://github.com/vllm-project/vllm/commit/c9a788eedc412acceaa5112e0d44624b49841577
- https://github.com/vllm-project/vllm/pull/47595
- https://github.com/vllm-project/vllm/releases/tag/v0.26.0
- https://github.com/vllm-project/vllm/security/advisories/GHSA-48jh-3gj7-fg8v