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Vulnerabilities

Vulnerability · CVE-2026-41078

OpenTelemetry dotnet is a dotnet telemetry framework.

Published Apr 23, 2026 · catalog updated Jun 17, 2026 · OpenTelemetry dotnet is a

Check if you run it

No confirmed exploitation is on record for CVE-2026-41078. EPSS is 0.37%. Act only if a listed version of OpenTelemetry dotnet is a is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (OpenTelemetry dotnet is a).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.37%
Remediation
Advisory link
Affected products
cpe opentelemetry/opentelemetry

OpenTelemetry dotnet is a dotnet telemetry framework. In 1.6.0-rc.1 and earlier, OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent allocations. Under high-cardinality or attacker-influenced telemetry input, this can increase memory consumption and potentially cause denial of service. There is no plan to fix this issue as OpenTelemetry.Exporter.Jaeger was deprecated in 2023.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe opentelemetry/opentelemetry1.6.0

How to fix CVE-2026-41078

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-41078. EPSS is 0.37%. Act only if a listed version of OpenTelemetry dotnet is a is installed.

Which versions are affected?

Compare what you have installed with 1.6.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 0.37%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 23, 2026 · NIST NVD

    Detected

    OpenTelemetry dotnet is a dotnet telemetry framework. In 1.6.0-rc.1 and earlier, OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent allocations. Under high-cardinality or attacker-influenced telemetry input, this can increase memory consumption and potent

  2. Jun 17, 2026 · NIST NVD

    Updated

    OpenTelemetry dotnet is a dotnet telemetry framework. In 1.6.0-rc.1 and earlier, OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent allocations. Under high-cardinality or attacker-influenced telemetry input, this can increase memory consumption and potent

Sources

  • CVE.orgVulnerability recordCVE-2026-41078

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-41078

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-41078

    OpenTelemetry dotnet is a dotnet telemetry framework. In 1.6.0-rc.1 and earlier, OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent all

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.