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CVE details

CVE-2026-126399

vLLM from 0.19.0 before 0.31.0 contains a resource exhaustion vulnerability that allows inference clients to bypass the server frame limit by setting media_io_kwargs.video.num_frames in chat completion requests. Attackers can supply num_frames=-1 or a large value with many base64 JPEG frames, forcing VideoMediaIO to decode all frames and np.stack them, causing memory exhaustion.

Score
7.1 high
Published
2026-11-13
Links
NVD · cve.org · Report wrong data

Matched ports (1)

PortPackageVersionStatusMaintainer
misc/py-vllmpy312-vllm0.20.2_1unaddressedyuri@FreeBSD.org

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Ranges per package from the CVE rows that match this port, in pkg notation with the port's epoch and revision, every bound checked with pkg; one range per epoch the port actually had. make newentry in security/vuxml creates the vid.

No CPE in the port Makefile

misc/py-vllm (CPE matched by the package name) has no USES=cpe. The CVE was matched through a CPE from another source, so the package and the version range may belong to a different product. Check the CVE record before using this entry.

  <vuln vid="FIXME (make newentry)">
    <topic>py312-vllm -- FIXME</topic>
    <affects>
      <package>
	<name>py312-vllm</name>
	<range><ge>0.19.0</ge><lt>0.31.0</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>CVE-2026-126399: vLLM from 0.19.0 before 0.31.0 contains a resource
	  exhaustion vulnerability that allows inference clients to bypass
	  the server frame limit by setting media_io_kwargs.video.num_frames
	  in chat completion requests. Attackers can supply num_frames=-1 or
	  a large value with many base64 JPEG frames, forcing VideoMediaIO to
	  decode all frames and np.stack them, causing memory exhaustion.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-126399</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-126399</url>
    </references>
    <dates>
      <discovery>2026-11-13</discovery>
      <entry>2026-11-13</entry>
    </dates>
  </vuln>