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VulnerabilityPublished

CVE-2026-115911: vllm · Uncontrolled Resource Consumption

Affects vllmSource CVE Database V5

0

Not known to be exploited · CVSS 6.5 Medium : upgrade to 0.32.0 when convenient.

Data as of 26 Oct 2026, 17:30 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 0.32.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade vllm to 0.32.0.

Affected software

ProductAffectedFixed in
vllm-projectvllmAffected
  • >=0.19.0 <0.32.0
Fixed in
  • 0.32.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade vllm to version 0.32.0 or later, where this issue is fixed. No other mitigation is indicated by the vendor advisory. Since this is not a cloud service, users must apply the patch themselves.

Description

CVE-2026-115911 is a vulnerability in vllm, an inference and serving engine for large language models, affecting versions from 0.19.0 up to but not including 0.32.0. Authenticated users can supply a chat template that is compiled and rendered without limits on execution time, output size, or iterations. This can cause a nonterminating render that blocks server responses or an output-expanding render that exhausts server memory. Harmony models are not affected. The issue is fixed in version 0.32.0.

References

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