restbed through 5.0.0 buffers HTTP request headers without enforcing a maximum size limit, allowing remote unauthenticated attackers to exhaust server memory. Attackers can open TCP connections and stream bytes indefinitely without sending the header delimiter, forcing the server to allocate unbounded heap memory until the process is killed.

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Fixes

Solution

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Workaround

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History

Thu, 01 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Corvusoft
Corvusoft restbed
Vendors & Products Corvusoft
Corvusoft restbed

Wed, 30 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 30 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Description restbed through 5.0.0 buffers HTTP request headers without enforcing a maximum size limit, allowing remote unauthenticated attackers to exhaust server memory. Attackers can open TCP connections and stream bytes indefinitely without sending the header delimiter, forcing the server to allocate unbounded heap memory until the process is killed.
Title restbed through 5.0.0 Denial of Service via Unbounded Header Buffering
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-30T19:18:24.675Z

Reserved: 2026-09-30T16:02:59.183Z

Link: CVE-2026-103471

cve-icon Vulnrichment

Updated: 2026-09-30T19:18:14.178Z

cve-icon NVD

Status : Deferred

Published: 2026-09-30T18:18:17.163

Modified: 2026-09-30T20:17:31.283

Link: CVE-2026-103471

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T15:38:51Z

Weaknesses