gcdRadar
archive/Patch now/AIR-2026-1946
closedclosed 13 Nov 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-126394: vLLM resource exhaustion vulnerability in OpenCVDynamicOpenPanguVideoBackend

vLLM

vLLM contains a resource exhaustion flaw in the openpangu video backend due to unconstrained num_frames input. Unauthenticated attackers can trigger large allocations that OOM-kill the API server.

why this severityDisclosed vulnerability with a fix and no confirmed exploitation.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
6.9
EPSS
<0.01 · top 62% · 2026-11-13
EPSS scores by FIRST
fix status
Patched
affected
vLLM >= 0.30.0, < 0.31.0
fixed in
vLLM 0.31.0
first report
13 Nov 2026
last update
13 Nov 2026
CVE ids
CVE-2026-126394other records

What to do

Update vLLM to version 0.31.0 or later.

Timeline · 1

  1. 13 Nov 2026CVE-2026-126394: vLLM 0.30.0 before 0.31.0 contains a resource exhaustion vulnerability in OpenCVDynamicOpenPanguVideoBackend, which uses…

Sources · 1

Advisories and databases

  1. 2026-11-13
    CVE-2026-126394: vLLM 0.30.0 before 0.31.0 contains a resource exhaustion vulnerability in OpenCVDynamicOpenPanguVideoBackend, which uses…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-126394

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Patched
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
denial-of-serviceout-of-memory
dates
happened 13 Nov 2026 · first reported 13 Nov 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-11-13 11:16Z · updated 2026-11-13 11:16Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-126394: vLLM resource exhaustion vulnerability in OpenCVDynamicOpenPanguVideoBackend

https://gcdradar.vercel.app/incidents/cve-2026-126394-vllm-resource-exhaustion-vulnerability-in-op · AIR-2026-1946 · closed 2026-11-13

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability): Disclosed vulnerability with a fix and no confirmed exploitation.
- Fix status: Patched
- First reported: 2026-11-13
- AI role: Attack on AI
- Products: vLLM
- CVE ids: CVE-2026-126394
- CVSS: 6.9

## Summary

vLLM contains a resource exhaustion flaw in the openpangu video backend due to unconstrained num_frames input. Unauthenticated attackers can trigger large allocations that OOM-kill the API server.

## What to do

Update vLLM to version 0.31.0 or later.

## Affected and fixed versions

- Affected: vLLM >= 0.30.0, < 0.31.0
- Fixed in: vLLM 0.31.0

## Latest updates

- 2026-11-13: CVE-2026-126394: vLLM 0.30.0 before 0.31.0 contains a resource exhaustion vulnerability in OpenCVDynamicOpenPanguVideoBackend, which uses… (https://nvd.nist.gov/vuln/detail/CVE-2026-126394)

## Sources

- 2026-11-13 NVD: CVE-2026-126394: vLLM 0.30.0 before 0.31.0 contains a resource exhaustion vulnerability in OpenCVDynamicOpenPanguVideoBackend, which uses… https://nvd.nist.gov/vuln/detail/CVE-2026-126394

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

Related

  1. closed6.9
    vLLM CVE-2026-126395: vLLM information disclosure vulnerability in sanitize_message()

    Patch now · Disclosed · Patched · since 13 Nov 2026 · CVE-2026-126395

    AI
  2. closed7.1
    vLLM CVE-2026-126399: vLLM resource exhaustion vulnerability via video frame limits bypass

    Patch now · Disclosed · Patched · since 13 Nov 2026 · CVE-2026-126399

    AI
  3. closed8.2
    vLLM CVE-2026-126398: vLLM reachable assertion vulnerability in GPUModelRunner._init_xdrope_positions

    Patch now · Disclosed · Patched · since 13 Nov 2026 · CVE-2026-126398

    AI
  4. closed8.7
    vLLM CVE-2026-126397: vLLM quadratic CPU work vulnerability in Cohere2 Vision multimodal preprocessing

    Patch now · Disclosed · Patched · since 13 Nov 2026 · CVE-2026-126397

    AI
  5. closed6.9
    vLLM CVE-2026-126396: vLLM resource exhaustion vulnerability in MiniMax M3 VL video processor

    Patch now · Disclosed · Patched · since 13 Nov 2026 · CVE-2026-126396

    AI
  6. closed7.5
    vLLM CVE-2026-115912: vLLM shared-memory multimodal remote code execution

    Patch now · Disclosed · Patched · since 26 Oct 2026 · updated 28 Oct 2026 · CVE-2026-115912

    AI