[NEW] [high] vllm: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in vllm to disclose information, manipulate data, bypass security measures or cause a denial-of-service condition.
CSIRTS triage
- What
- Multiple vulnerabilities in vllm allow information disclosure, data manipulation, security bypass, and denial of service.
- Who is affected
- All vllm installations are potentially affected by these multiple vulnerability classes.
- Urgency
- High severity with multiple attack vectors; remediation should be prioritized.
- Action
- Update vllm to a patched version addressing CVE-2026-73555 through CVE-2026-73559.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2842
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-735550.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-735560.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-735570.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-735580.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-735590.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-73555 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73556 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73557 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73558 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73559 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- mediumGHSA-87x5-vmc3-756j: vLLM: Completion prompt lists fan out into unbounded engine requestsghsa
- mediumCVE-2026-73559: vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.26.0, t…nvd
- mediumCVE-2026-73558: vLLM is an inference and serving engine for large language models. Prior to 0.27.0, an integer…nvd
- unknownCVE-2026-73557: vLLM is an inference and serving engine for large language models. From 0.20.2rc0 until 0.26.0…nvd
- mediumCVE-2026-73556: vLLM is an inference and serving engine for large language models. Prior to 0.26.0, the struct…nvd
- mediumCVE-2026-73555: vLLM is an inference and serving engine for large language models. Prior to 0.26.0, the valida…nvd
Recent advisories for vllm
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-78684: vLLM before 0.27.0 fails to properly classify DeepStream as a GPU backend and omits pixel-limi…nvd · 2026-08-25
- medium[UPDATE] [medium] vllm: Vulnerability allows code executioncert-bund · 2026-08-25
- medium[UPDATE] [medium] vllm: Vulnerability enables manipulation of datacert-bund · 2026-08-25
- medium[UPDATE] [medium] vllm: Multiple vulnerabilitiescert-bund · 2026-08-25
- medium[NEW] [medium] vllm: Vulnerability allows denial of servicecert-bund · 2026-08-24
- medium[UPDATE] [medium] vllm: Vulnerability allows denial of servicecert-bund · 2026-08-20
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