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CVE-2026-115915

9.8, critical

Vllm-project vllm Improper Input Validation Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.8, critical critical CVSS v3.1
EPSS, next 30 days
0.6% higher than 50.1% of scored CVEs
Exploitation
No public evidence
Published
26 Oct 20263 days ago

Description

vLLM is an inference and serving engine for large language models. Prior to 0.32.0, ImageMediaIO passes attacker-controlled image bytes to Pillow through Image.open(BytesIO(data)) without restricting decoder selection, and the MIME label does not constrain the selected format. Image-capable request paths through parse_image() and fetch_image() can therefore dispatch an EPS payload to host components. A host with Ghostscript affected by CVE-2024-29510 can execute commands with the vLLM process's privileges, while environments using Pillow 12.0.0 through 12.2.0 can trigger CVE-2026-59203 and exhaust media-loading workers. Deployments without the applicable vulnerable dependency are not affected by that corresponding impact. This issue is fixed in version 0.32.0.

Details

Vendor
Vllm-project
Product
vllm
Weakness
CWE-20 (opens in a new tab)
Status
Analyzed
Updated
28 Oct 2026
Assigner
security-advisories@github.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References 4

Patches and fixes 3

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Vllm-project CVEs

Every Vllm-project CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-115912 Vllm-project vllm Deserialization of Untrusted Data Vulnerability EPSS 0.5% 8.8, high
  • CVE-2026-116176 Vllm-project vllm Server-Side Request Forgery Vulnerability EPSS 0.3% 8.2, high
  • CVE-2026-116177 Vllm-project vllm Uncontrolled Resource Consumption Vulnerability EPSS 0.3% 7.5, high
  • CVE-2026-116179 Vllm-project vllm Allocation of Resources Without Limits or Throttling Vulnerability EPSS 0.3% 7.5, high
  • CVE-2026-116180 vLLM from 0.8.5 before 0.31.0 has a denial of service flaw EPSS 0.2% 7.7, high
  • CVE-2026-116172 Vllm-project vllm Improper Input Validation Vulnerability EPSS 0.3% 7.5, high
  • CVE-2026-116173 Vllm-project vllm Improper Input Validation Vulnerability EPSS 0.3% 7.5, high
  • CVE-2026-116174 Vllm-project vllm Improper Input Validation Vulnerability EPSS 0.3% 7.5, high

Beyond this page

Is CVE-2026-115915 in your network?

This page tells you how dangerous CVE-2026-115915 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-115915 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 29 Oct 2026, not the live upstream state.