CVE-2026-54712: OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries f

Routine

MEDIUM 5.3REMOTEWATCHLISTUPGRADE

CVE-2026-54712 is a medium-severity flaw (CVSS 5.3) affecting opentelemetry instrumentation for java. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries for Java. In versions prior to 2.27.0, the RMI context propagation payload reader limits the number of context entries but does not limit the aggregate size of the strings read from the stream. An attacker who can reach an RMI endpoint on an instrumented JVM can send an oversized context propagation payload. This can cause excessive memory

Why this priority

Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-400
Published	2026-07-01
Last modified	2026-10-25

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

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-01 22:16 UTCPublished CVE record published
2026-10-25 16:10 UTCUpdated Record last modified

linuxfoundation opentelemetry instrumentation for java UPGRADE

Affected: >= 2.26.1 and < 2.27.0

Fixed in: 2.27.0

Safe to downgrade to: a release before 2.26.1

1. Check installed version

apt-cache policy opentelemetry-instrumentation-for-java || rpm -q opentelemetry-instrumentation-for-java || opentelemetry-instrumentation-for-java --version

2. UPGRADE to 2.27.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opentelemetry-instrumentation-for-java

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opentelemetry-instrumentation-for-java

Note

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

3. If no update is available yet, DOWNGRADE to a release before 2.26.1 (Debian / Ubuntu)

apt-cache madison opentelemetry-instrumentation-for-java sudo apt install opentelemetry-instrumentation-for-java=<VERSION_BEFORE_2.26.1> sudo apt-mark hold opentelemetry-instrumentation-for-java

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list opentelemetry-instrumentation-for-java sudo dnf downgrade opentelemetry-instrumentation-for-java-<VERSION_BEFORE_2.26.1> sudo dnf versionlock add opentelemetry-instrumentation-for-java

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-54712?

opentelemetry instrumentation for java: upgrade to 2.27.0. Exact commands for each OS are on this page.

Is CVE-2026-54712 being exploited?

CVE-2026-54712 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-2026-54712 affect?

CVE-2026-54712 affects opentelemetry instrumentation for java. Severity is medium (CVSS 5.3). OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries for Java. In versions prior to 2.27.0, the RMI context propagation payload reader limits the number of context entries but does not

How urgent is CVE-2026-54712?

Priority 38/100. Remotely exploitable, no login, no user action; On your watchlist

Software pages

Java vulnerabilities

Related CVEs

CVE-2026-54704 MEDIUM 6.5 UPGRADE OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries f

References

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