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CVE.org (no NVD analysis yet)· CNA VulnCheck

CVE-2026-109228: SGLang through 0.5.21 Resource Budget Bypass via GLM-V Video Parameters

HighCVSS 8.7 · v4.0—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 34/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.49% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

SGLang through 0.5.21 contains a resource budget bypass vulnerability that allows remote attackers to override GLM-V video processing limits by supplying fps, max_frames, max_tokens_per_frame and max_image_tokens in the video_url object. Attackers can set these values arbitrarily high so glm4v.py decodes every frame of high-resolution video at full size, exhausting worker memory and denying service.

Published
Oct 12, 2026
Updated
Oct 14, 2026
EPSS
0.4% · 42th percentile

Report tools

JSON

Action score

34

Monitor

Low priority for now.

CVSS
34 / 40 · 8.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulnCheck
8.7
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-109228

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.

  • sgl-project sglang

    • up to and including 0.5.21affected · semver

Same product

sgl-project: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-111391SGLang 0.5.10 through 0.5.22 Code Injection via Debug Dumper Filter
    36Monitor
  • CVE-2026-92972SGLang through 0.5.19 Unauthenticated Route Poisoning via PUT endpoint
    35Monitor
  • CVE-2026-109229SGLang through 0.5.21 Decompression Bomb DoS via NanoNemotronVLImageProcessor
    34Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-109226Oct 12, 2026 · SGLang through 0.5.21 Audio Decompression Amplification via load_audio
    34Monitor
  • ← EarlierCVE-2026-109227Oct 12, 2026 · SGLang through 0.5.21 Memory Exhaustion DoS via Qwen-VL Video Preprocessing
    34Monitor
  • Later →CVE-2026-110807Oct 14, 2026 · sgl-project SGLang generate Endpoint io_struct.py denial of service
    8Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-1092250 days apartSGLang through 0.5.21 Memory Exhaustion DoS via /v1/audio/transcriptions Upload
    34Monitor
  • CVE-2026-1092270 days apartSGLang through 0.5.21 Memory Exhaustion DoS via Qwen-VL Video Preprocessing
    34Monitor
  • CVE-2026-9368824 days apartSGLang through 0.5.19 Unbounded Memory Allocation via bootstrap_room
    34Monitor
  • CVE-2026-9383824 days apartSGLang through 0.5.20 Unbounded Memory Allocation via STAGING_REQ chunk_idx
    32Monitor
  • CVE-2026-1122697 days apartSGLang through 0.5.22 Memory Exhaustion via Unauthenticated Mooncake Decode Registrations
    28Monitor
  • CVE-2026-1122707 days apartSGLang through 0.5.22 Memory Exhaustion via Mooncake STAGING_RSP chunk_idx
    28Monitor

Not on record for this CVE: patch commit or PR link · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
X

Weakness class (CWE)

CWE-770 · Allocation of Resources Without Limits or Throttling

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records