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No exploitation reported

CVE-2026-37237

No exploitation reported by the sources we read.

  • Published2026-08-28
  • WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

vLLM up to and including 0.17.0 allows remote attackers to cause a Denial of Service via memory exhaustion. The AsyncMediaIO.fetch_audio and AsyncMediaIO.fetch_image functions in multimodal/inputs.py fetch user-supplied media URLs using aiohttp and call r.read() without enforcing a maximum response size, allowing an attacker to exhaust server memory by providing a URL to an arbitrarily large file.

Timeline

dates in UTC
  1. 2026-08-2816:17CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-37237?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-37237?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Vllm
BranchAffectedFixed in
0.17≤ 0.17.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2026-37237 Red Hat Product Security28 products fixed · 16 known affected

    vllm: vLLM: Denial of Service via memory exhaustion from oversized media files

    rhaii/vllm-gaudi-rhel9 as a component of Red Hat AI Inference Server · rhaii/vllm-neuron-rhel9 as a component of Red Hat AI Inference Server · rhaii/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server · +13 more

  • RHSA-2026:86891 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: RHOAI 3.5.2 - Red Hat OpenShift AI

  • RHSA-2026:84734 Red Hat Product Security16 products fixed

    Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI

  • RHSA-2026:83121 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AI Inference 3.4.6 (rocm)

  • RHSA-2026:83120 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: Red Hat AI Inference 3.4.6 (cuda)

  • RHSA-2026:83114 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Red Hat AI Inference 3.4.6 (spyre)

3 more advisories

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2026:86891 · 2 productsFor Red Hat OpenShift AI 3.5.2 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  2. Vendor fix Red Hat Product Security RHSA-2026:84734 · 16 productsFor Red Hat OpenShift AI 3.4.5 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  3. Vendor fix Red Hat Product Security RHSA-2026:83121 · 1 productFor more information visit https://access.redhat.com/errata/RHSA-2026:83121
  4. Vendor fix Red Hat Product Security RHSA-2026:83120 · 2 productsFor more information visit https://access.redhat.com/errata/RHSA-2026:83120
  5. Vendor fix Red Hat Product Security RHSA-2026:83114 · 3 productsFor more information visit https://access.redhat.com/errata/RHSA-2026:83114
  6. Vendor fix Red Hat Product Security RHSA-2026:83112 · 1 productFor more information visit https://access.redhat.com/errata/RHSA-2026:83112

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2026-08-28
Last Modified
2026-09-29
NVD status
Analyzed

Frequently asked questions

What is CVE-2026-37237?

vLLM up to and including 0.17.0 allows remote attackers to cause a Denial of Service via memory exhaustion. The AsyncMediaIO.fetch_audio and AsyncMediaIO.fetch_image functions in multimodal/inputs.py fetch user-supplied media URLs using aiohttp and call r.read() without enforcing a maximum response size, allowing an attacker to exhaust server memory by providing a URL to an arbitrarily large file.

Is CVE-2026-37237 actively exploited?

Active exploitation of CVE-2026-37237 has not been confirmed. Its EPSS score was 0.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-37237?

CVE-2026-37237 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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