CVE-2026-103472 (GCVE-0-2026-103472)

Vulnerability from cvelistv5 – Published: 2026-09-30 17:22 – Updated: 2026-09-30 17:22
VLAI
Title
restbed through 5.0.0 WebSocket Memory Exhaustion via Unbounded Frame Buffering
Summary
restbed through 5.0.0 accepts WebSocket frames with declared payload lengths up to 2^63 bytes and buffers the payload without size limits in an unbounded stream buffer. Remote unauthenticated attackers can declare large frame sizes and stream payload data to exhaust server memory, causing denial of service through process crash.
Severity
8.7 (High)
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
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version CPE status
Corvusoft restbed Affected: 0 , ≤ 5.0.0 (custom)
guessed Create a notification for this product.
Date Public
2026-09-30 00:00
Credits
MJ DHURGESH
Show details on NVD website
To clipboard 

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          "tags": [
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          "url": "https://github.com/Corvusoft/restbed/issues/558"
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          "tags": [
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    "dateReserved": "2026-09-30T16:02:59.545Z",
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    "state": "PUBLISHED"
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  "dataVersion": "5.2",
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          "cvssMetricV40": [
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                "modifiedAttackRequirements": "NOT_DEFINED",
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                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
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                "valueDensity": "NOT_DEFINED",
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}



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