CVE-2026-41484: OpenTelemetry.Exporter.OneCollector is a .NET exporter that sends telemetry to a OneCollector back-end over HT

Q: How do I fix CVE-2026-41484?

opentelemetry.exporter.onecollector: upgrade to newer than 1.15.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-41484 being exploited?

CVE-2026-41484 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-41484 affect?

CVE-2026-41484 affects opentelemetry.exporter.onecollector. Severity is medium (CVSS 5.3). OpenTelemetry.Exporter.OneCollector is a .NET exporter that sends telemetry to a OneCollector back-end over HTTP. In versions 1.15.0 and earlier, when a request to the configured back-end or collector results in an unsuccessful HTTP 4xx or

Q: How urgent is CVE-2026-41484?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 5.3UPGRADE

CVE-2026-41484 is a medium-severity flaw (CVSS 5.3) affecting opentelemetry.exporter.onecollector. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenTelemetry.Exporter.OneCollector is a .NET exporter that sends telemetry to a OneCollector back-end over HTTP. In versions 1.15.0 and earlier, when a request to the configured back-end or collector results in an unsuccessful HTTP 4xx or 5xx response, the HttpJsonPostTransport class reads the entire response body into memory with no upper bound on the number of bytes consumed in order to include the error response in operator logs. An attacker

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Adjacent network
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 73%)
CISA exploited list	No
Weakness	CWE-770
Published	2026-05-06
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: opentelemetry

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-06 22:16 UTCPublished CVE record published
2026-10-26 19:10 UTCUpdated Record last modified

opentelemetry opentelemetry.exporter.onecollector UPGRADE

Affected: <= 1.15.0

Fixed in: newer than 1.15.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy opentelemetry.exporter.onecollector || rpm -q opentelemetry.exporter.onecollector || opentelemetry.exporter.onecollector --version

2. UPGRADE to newer than 1.15.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opentelemetry.exporter.onecollector

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opentelemetry.exporter.onecollector

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41484?

opentelemetry.exporter.onecollector: upgrade to newer than 1.15.0. Exact commands for each OS are on this page.

Is CVE-2026-41484 being exploited?

CVE-2026-41484 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41484 affect?

CVE-2026-41484 affects opentelemetry.exporter.onecollector. Severity is medium (CVSS 5.3). OpenTelemetry.Exporter.OneCollector is a .NET exporter that sends telemetry to a OneCollector back-end over HTTP. In versions 1.15.0 and earlier, when a request to the configured back-end or collector results in an unsuccessful HTTP 4xx or

How urgent is CVE-2026-41484?

Priority 25/100. No elevated risk signals yet.

References

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