Is CVE-2026-109228 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-109228 being exploited in the wild.

How severe is CVE-2026-109228?

High severity, with a CVSS score of 7.5, published 12 October 2026.

Which products and versions are affected?

SGLang Project SGLang through 0.5.21.

Is there a fix for CVE-2026-109228?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-109228 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-109228?

Check whether you run SGLang Project SGLang at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-109228: SGLang resource budget bypass in GLM-V video processing

CVE-2026-109228 · Severity: high · CVSS 7.5 · Published 2026-10-12

SGLang is a serving framework for large language models and multimodal models. A resource budget bypass vulnerability allows remote attackers to force excessive video frame decoding by manipulating parameters, causing worker memory exhaustion and denying service to legitimate users.

Technologies: SGLang Project SGLang. Vendors: SGLang Project.

Quick answers

Is CVE-2026-109228 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-109228 being exploited in the wild.
How severe is CVE-2026-109228?: High severity, with a CVSS score of 7.5, published 12 October 2026.
Which products and versions are affected?: SGLang Project SGLang through 0.5.21.
Is there a fix for CVE-2026-109228?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-109228 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-109228?: Check whether you run SGLang Project SGLang at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in SGLang's GLM-V video processing component (glm4v.py), where insufficient validation of fps, max_frames, max_tokens_per_frame, and max_image_tokens parameters supplied in the video_url object allows attackers to set these values arbitrarily high. This causes the framework to decode every frame of high-resolution video at full resolution, exhausting available memory on worker nodes. The attack is network-accessible with no authentication required.

Affected products

SGLang Project SGLang through 0.5.21

Timeline

2026-10-12: disclosed

References

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