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CVE-2026-40894

🗓️ 23 Apr 2026 18:03:28Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 211 Views

Excessive memory allocation in OpenTelemetry dotnet when parsing propagation headers may cause DoS; fixed in 1.15.3.

Related
Detection
Affected
Refs
Social
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-40894
23 Apr 202618:03
attackerkb
cgr
Chainguard
CVE-2026-40894 vulnerabilities
28 Apr 202613:17
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circl
Circl
CVE-2026-40894
25 Apr 202603:10
circl
cnnvd
CNNVD
OpenTelemetry .NET 安全漏洞
23 Apr 202600:00
cnnvd
cvelist
Cvelist
CVE-2026-40894 OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers
23 Apr 202618:03
cvelist
euvd
EUVD
EUVD-2026-25269
23 Apr 202621:43
euvd
github
Github Security Blog
OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers
23 Apr 202621:43
github
nvd
NVD
CVE-2026-40894
23 Apr 202619:17
nvd
osv
OSV
CGA-3RCX-262C-GXH5
24 Apr 202611:54
osv
osv
OSV
CGA-59JV-Q5GQ-VRFJ
24 Apr 202611:46
osv
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NVD
Vulners
Node
[
  {
    "vendor": "open-telemetry",
    "product": "opentelemetry-dotnet",
    "versions": [
      {
        "version": ">= 0.5.0-beta.2, < 1.15.3",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "open-telemetry",
    "product": "OpenTelemetry.Api",
    "versions": [
      {
        "version": ">= 0.5.0-beta.2, < 1.15.3",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "open-telemetry",
    "product": "OpenTelemetry.Extensions.Propagators",
    "versions": [
      {
        "version": ">= 1.3.1, < 1.15.3",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 10:45Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
EPSS0.00458
SSVC
211