Lucene search
+L

Fastify: DoS via Unbounded Memory Allocation in sendWebStream on Fastify v5.7.0+ leads to OOM crash when backpressure is ignored

🗓️ 26 Jan 2026 11:03:56Reported by onlybugs05Type 
hackerone
 hackerone
🔗 hackerone.com👁 38 Views

Fastify sendWebStream backpressure DoS causes unbounded memory growth and OOM in five seven zero.

Related
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-25224
3 Feb 202621:21
–attackerkb
cnnvd
CNNVD
Fastify security vulnerabilities
3 Feb 202600:00
–cnnvd
cve
CVE
CVE-2026-25224
3 Feb 202621:21
–cve
cvelist
Cvelist
CVE-2026-25224 Fastify Vulnerable to DoS via Unbounded Memory Allocation in sendWebStream
3 Feb 202621:21
–cvelist
euvd
EUVD
EUVD-2026-5158
3 Feb 202621:21
–euvd
github
Github Security Blog
Fastify Vulnerable to DoS via Unbounded Memory Allocation in sendWebStream
2 Feb 202622:25
–github
mend
Mend
CVE-2026-25224
3 Feb 202621:21
–mend
nvd
NVD
CVE-2026-25224
3 Feb 202622:16
–nvd
osv_cga
osv_cga
CGA-3F78-3P8X-4WJ7
20 Oct 202620:20
–osv_cga
osv_cga
osv_cga
CGA-6HPW-CHHV-3RCM
20 Oct 202619:15
–osv_cga
Rows per page

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

05 Mar 2026 15:49Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.13.7
EPSS0.00554
SSVC
38