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CVE-2026-100648

MEDIUM 6.9

Published 2026-09-26 · Last modified 2026-09-28

vllm before 0.29.0 fails to enforce VLLM_MAX_AUDIO_CLIP_FILESIZE_MB limit in multimodal chat audio decoding, allowing unauthenticated clients to bypass file size restrictions. Attackers can submit oversized audio files through chat endpoints to consume excessive memory and CPU resources during decoding.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 29th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

6.9CVSS 4.0 · MEDIUM

  • ConfidentialityNone
  • IntegrityNone
  • AvailabilityLow

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable
  • ✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Vllm Project Vllm

Products Vllm

Weakness (CWE)

  • CWE-400: Uncontrolled Resource Consumption

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References and research data (JSON)

Vendor product assessments

  • rhaii/vllm-cpu-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-cpu-rhel9@sha256:81c5994dc20321f8bd3969099eade78ef127cbd79f2d0ccea101c773e4c7fa4d?repository_url=registry.redhat.io/rhaii/vllm-cpu-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaii/vllm-cuda-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-cuda-rhel9@sha256:0d22e2301ce26ef68effda5d3a4a20381ad0ea34d1240e159e245bd44c2e125b?repository_url=registry.redhat.io/rhaii/vllm-cuda-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaii/vllm-gaudi-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-gaudi-rhel9@sha256:ce1e4fd82dd37d299ce8c64a237971d00faf602f06868c986e81aefa04c283ef?repository_url=registry.redhat.io/rhaii/vllm-gaudi-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaii/vllm-neuron-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-neuron-rhel9@sha256:1079c9afecdbc33f4790792f0d712dbf7523790a92dcfbe8fb5cf4c2d282fc5b?repository_url=registry.redhat.io/rhaii/vllm-neuron-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaii/vllm-rocm-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-rocm-rhel9@sha256:1a30359d6ca5d0891e403b9b0a23c0ae1ad6e30a2429b9b42e246b874fe8859a?repository_url=registry.redhat.io/rhaii/vllm-rocm-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaii/vllm-spyre-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-spyre-rhel9@sha256:11ad6e13c41728944d933c7abe01d1d10ecb3f8e8b4f0da50ec53b7df6f036a8?repository_url=registry.redhat.io/rhaii/vllm-spyre-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaii/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-tpu-rhel9@sha256:0c2ac747d67dc0e80162ff05867dd702e474b2217659f19f28b8e3a0c03a942a?repository_url=registry.redhat.io/rhaii/vllm-tpu-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaiis/vllm-cpu-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-cpu-rhel9@sha256:fb7791bbfea99e9f81529fe8cc1e7c834ca470585c27590e3d0a6834167cd436?repository_url=registry.redhat.io/rhaiis/vllm-cpu-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaiis/vllm-cuda-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-cuda-rhel9@sha256:73bbc4560132c4aaa9bbd608ce9560eeae7b30bcc8f014da460afa5622139372?repository_url=registry.redhat.io/rhaiis/vllm-cuda-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaiis/vllm-neuron-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-neuron-rhel9@sha256:8ba72cec5d79b1a751eb09774c81fd6181b43ec69a2e5116982661b34366874d?repository_url=registry.redhat.io/rhaiis/vllm-neuron-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaiis/vllm-rocm-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-rocm-rhel9@sha256:37b64a8df90756aae0ee96d2f07765adbce5ed5beb2414ac3845806ad2219cfc?repository_url=registry.redhat.io/rhaiis/vllm-rocm-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaiis/vllm-spyre-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-spyre-rhel9@sha256:3dd7eff1c62cd4609b4c76590b77bb801cd064e40642ed32b5aa900a6bc643ea?repository_url=registry.redhat.io/rhaiis/vllm-spyre-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhaiis/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server · known affected

    Vendor assessment for this product only.

    pkg:oci/vllm-tpu-rhel9@sha256:b1c12112a1e8a298645e10d34d44c9961a6121aa8d87fc5d65ad83e1ffa3c586?repository_url=registry.redhat.io/rhaiis/vllm-tpu-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhelai3/bootc-aws-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-aws-cuda-rhel9@sha256:a754d4d1126e98f203249414b3831182bb15ee6b3643452f167849defc642e4b?repository_url=registry.redhat.io/rhelai3/bootc-aws-cuda-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhelai3/bootc-azure-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-azure-cuda-rhel9@sha256:df5b6edd1bdb055219a7385b6d5923f3262c3a408f92da734e3027af55fd593f?repository_url=registry.redhat.io/rhelai3/bootc-azure-cuda-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhelai3/bootc-azure-rocm-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-azure-rocm-rhel9@sha256:8ea1233b1fb6b82d0aa69e9e4c47d2df242001280c11a61584066c27c5bec3a5?repository_url=registry.redhat.io/rhelai3/bootc-azure-rocm-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhelai3/bootc-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-cuda-rhel9@sha256:b45f3bc25a7d3c9f3bfdc1de3be6db59f6c3109f62326d74fae14e832a797981?repository_url=registry.redhat.io/rhelai3/bootc-cuda-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhelai3/bootc-gaudi-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-gaudi-rhel9@sha256:e1057b59ca1be9501332abf97230855e85c7df858356be0da9dce230ea7e98e1?repository_url=registry.redhat.io/rhelai3/bootc-gaudi-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhelai3/bootc-gcp-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-gcp-cuda-rhel9@sha256:bac5d435d156c3ddcb581d3ff05fdce9f72bd617c5b8435cede16bb17b7bf12e?repository_url=registry.redhat.io/rhelai3/bootc-gcp-cuda-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhelai3/bootc-rocm-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-rocm-rhel9@sha256:38ce057f97034bbb8eaea574d41cc7eebaeaa9265a4cdd966476dd3fac129c3c?repository_url=registry.redhat.io/rhelai3/bootc-rocm-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhoai/odh-kserve-agent-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-kserve-agent-rhel9@sha256:eddf436baf8906d08f1cd28fecdc73f70f9bbf11a73e327d9c97495ee921c523?repository_url=registry.redhat.io/rhoai/odh-kserve-agent-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhoai/odh-kserve-controller-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-kserve-controller-rhel9@sha256:8b4d4c6a45b2ff1b25fda45dc022066ed5d055267ce08ab0b31e58191970632e?repository_url=registry.redhat.io/rhoai/odh-kserve-controller-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhoai/odh-kserve-router-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-kserve-router-rhel9@sha256:1fb5c0b39c43904a5843a9e01cddac40cfe5580d9bb7abdf6083c9f53d1655b3?repository_url=registry.redhat.io/rhoai/odh-kserve-router-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhoai/odh-kserve-storage-initializer-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-kserve-storage-initializer-rhel9@sha256:7c88948bcfa0fc3439b1eae31c426639346044505aff440238bfb194fd15ce99?repository_url=registry.redhat.io/rhoai/odh-kserve-storage-initializer-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhoai/odh-llm-d-kv-cache-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-llm-d-kv-cache-rhel9@sha256:cb5eedeefd2578cd9bd8637250bbe299c84539f57b4ead75d630ed9f833a6ef2?repository_url=registry.redhat.io/rhoai/odh-llm-d-kv-cache-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhoai/odh-th-torch-cuda-py312-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-th-torch-cuda-py312-rhel9@sha256:efd7b3607b699092c68359d20ef0d0043114191a097637667c0d2cf78fbea702?repository_url=registry.redhat.io/rhoai/odh-th-torch-cuda-py312-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00
  • rhoai/odh-vllm-gaudi-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-vllm-gaudi-rhel9@sha256:87eec3862eb6ddef445f89dcf6fd89add7ef202ea7c563b1ee7347537fb3e250?repository_url=registry.redhat.io/rhoai/odh-vllm-gaudi-rhel9

    • workaround: Setting VLLM_MAX_AUDIO_CLIP_FILESIZE_MB alone does not mitigate this CVE on affected builds, chat multimodal audio ignored that limit. Restricting API reachability and keeping other audio bounds can be of help.
    • none available: Fix deferred
    Red Hat · CVE-2026-100648 · Updated 2026-10-01T17:34:09+00:00

Known Affected Software Configurations

VendorProductVersion range
VllmVllm< 0.29.0

All CVSS metrics

  • MEDIUM 6.9 v4.0 · CNA Primary
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  • MEDIUM 5.3 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • MEDIUM 6.9 v4.0 · NVD Secondary
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • MEDIUM 5.3 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS