GHSA-xw7x-h9fj-p2c7

Suggest an improvement
Source
https://github.com/advisories/GHSA-xw7x-h9fj-p2c7
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xw7x-h9fj-p2c7/GHSA-xw7x-h9fj-p2c7.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-xw7x-h9fj-p2c7
Aliases
Published
2026-03-25T21:27:43Z
Modified
2026-03-27T21:51:16.245041Z
Severity
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
OpenTelemetry: Unsafe Deserialization in RMI Instrumentation may Lead to Remote Code Execution
Details

In versions prior to 2.26.1, the RMI instrumentation registered a custom endpoint that deserialized incoming data without applying serialization filters. An attacker with network access to a JMX or RMI port on an instrumented JVM could exploit this to potentially achieve remote code execution. All three of the following conditions must be true to exploit this vulnerability: 1. OpenTelemetry Java instrumentation is attached as a Java agent (-javaagent) 2. An RMI endpoint is network-reachable (e.g. JMX remote port, an RMI registry, or any application-exported RMI service) 3. A gadget-chain-compatible library is present on the classpath

Impact

Arbitrary remote code execution with the privileges of the user running the instrumented JVM.

Recommendation

Upgrade to version 2.26.1 or later.

Workarounds

Set the following system property to disable the RMI integration:

-Dotel.instrumentation.rmi.enabled=false

Credits

This vulnerability was responsibly disclosed in coordination with Datadog.

Database specific 
{
    "cwe_ids": [
        "CWE-502"
    ],
    "github_reviewed": true,
    "severity": "CRITICAL",
    "github_reviewed_at": "2026-03-25T21:27:43Z",
    "nvd_published_at": "2026-03-27T01:16:19Z"
}
References

Affected packages

Maven / io.opentelemetry.javaagent:opentelemetry-javaagent

Package

Name
io.opentelemetry.javaagent:opentelemetry-javaagent
View open source insights on deps.dev
Purl
pkg:maven/io.opentelemetry.javaagent/opentelemetry-javaagent

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.26.1

Affected versions

0.*
0.12.0
0.12.1
0.13.0
0.13.1
0.14.0
0.15.0
0.15.1
0.16.0
0.16.1
0.17.0
1.*
1.0.0
1.0.1
1.1.0
1.2.0
1.3.0
1.3.1
1.4.0
1.4.1
1.5.0
1.5.1
1.5.2
1.5.3
1.6.0
1.6.1
1.6.2
1.7.0
1.7.1
1.7.2
1.8.0
1.9.0
1.9.1
1.9.2
1.10.0
1.10.1
1.11.0
1.11.1
1.12.0
1.12.1
1.13.0
1.13.1
1.14.0
1.15.0
1.16.0
1.17.0
1.18.0
1.19.0
1.19.1
1.19.2
1.20.0
1.20.1
1.20.2
1.21.0
1.22.0
1.22.1
1.23.0
1.24.0
1.25.0
1.25.1
1.26.0
1.27.0
1.28.0
1.29.0
1.30.0
1.31.0
1.32.0
1.32.1
1.33.0
1.33.1
1.33.2
1.33.3
1.33.4
1.33.5
1.33.6
2.*
2.0.0
2.1.0
2.2.0
2.3.0
2.4.0
2.5.0
2.6.0
2.7.0
2.8.0
2.9.0
2.10.0
2.11.0
2.12.0
2.13.0
2.13.1
2.13.2
2.13.3
2.14.0
2.15.0
2.16.0
2.17.0
2.17.1
2.18.0
2.18.1
2.19.0
2.20.0
2.20.1
2.21.0
2.22.0
2.23.0
2.24.0
2.25.0
2.26.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xw7x-h9fj-p2c7/GHSA-xw7x-h9fj-p2c7.json"