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CVE-2021-21293

🗓️ 02 Feb 2021 21:35:17Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 102 Views

blaze, a Scala library for building asynchronous pipelines, is vulnerable to unbounded connection acceptance leading to file handle exhaustion in version 0.14.15. The issue affects servers using http4s-blaze-server <= 0.21.16 and is fixed in version 0.14.15 for "NIO1SocketServerGroup". Workarounds are described in the referenced GitHub Advisory GHSA-xmw9-q7x9-j5qc

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-21293
2 Feb 202122:15
–attackerkb
circl
Circl
CVE-2021-21293
3 Feb 202100:55
–circl
cnnvd
CNNVD
Http4s Blaze Resource Management Error Vulnerability
2 Feb 202100:00
–cnnvd
cvelist
Cvelist
CVE-2021-21293 Unbounded connection acceptance leads to file handle exhaustion
2 Feb 202121:35
–cvelist
euvd
EUVD
EUVD-2021-0580
7 Oct 202500:30
–euvd
github
Github Security Blog
Unbounded connection acceptance leads to file handle exhaustion
2 Feb 202121:42
–github
mend
Mend
CVE-2021-21293
2 Feb 202121:35
–mend
nvd
NVD
CVE-2021-21293
2 Feb 202122:15
–nvd
osv_cve
osv_cve
CVE-2021-21293
2 Feb 202122:15
–osv_cve
osv_ghsa
osv_ghsa
GHSA-XHV5-W9C5-2R2W Unbounded connection acceptance in http4s-blaze-server
2 Feb 202121:42
–osv_ghsa
Rows per page
NVD
Vulners
Node
typelevelblazeRange<0.14.15
[
  {
    "product": "blaze",
    "vendor": "http4s",
    "versions": [
      {
        "status": "affected",
        "version": "< 0.14.15"
      }
    ]
  }
]

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17 Jun 2026 03:35Current
7.2High risk
Vulners AI Score7.2
CVSS 25
CVSS 3.17.5
EPSS0.02143
102