CVE-2026-48496: opentelemetry-ebpf-profiler Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-f2r5-5m7w-p5cx
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CVSS 6.2
CWE-770
Published
Advisory Summary

CVE-2026-48496 is a MODERATE (CVSS 6.2) denial of service vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting opentelemetry-ebpf-profiler libraries in the Go ecosystem. The issue involves unprivileged process can trigger a denial of service on the ebpf-profiler agent. Remediation is available by upgrading affected packages to version 0.0.202622.

CVE-2026-48496 at a Glance

CVE Identifier CVE-2026-48496
GHSA Identifier GHSA-f2r5-5m7w-p5cx
Severity MODERATE
CVSS v3.1 Base Score 6.2
CWE Classification CWE-770: Allocation of Resources Without Limits or Throttling
Affected Product opentelemetry-ebpf-profiler
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.2

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-48496

To remediate this vulnerability, upgrade all affected opentelemetry-ebpf-profiler dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

go.opentelemetry.io/ebpf-profiler fixed: 0.0.202622 
Upgrade go.opentelemetry.io/ebpf-profiler to 0.0.202622
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for go.opentelemetry.io/ebpf-profiler

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-48496, inspect your project dependencies for opentelemetry-ebpf-profiler:

inspect dependencies for go.opentelemetry.io/ebpf-profiler

Analyze the terminal output to locate any version of opentelemetry-ebpf-profiler in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.202622), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. In opentelemetry-ebpf-profiler, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary An unprivileged process can easily trigger the `processPIDEvents` goroutine to be blocked indefinitely, preventing the goroutine from analyzing any new ELF file. The goroutine stays blocked in the `openat2` syscall forever and the profiler can no longer work properly, it is a denial of service. ### Impact The impact is limited to denial-of-service on the ebpf-profiler agent: - There has to be a malicious workload albeit unprivileged. - No exfiltration of data. No loss of data. ### Fix Fixed in https://github.com/open-telemetry/opentelemetry-ebpf-profiler/commit/234b685cab31c2cb2f79e966caeab168bcc489e4. Fix is part of [v.0.0.202622](https://github.com/open-telemetry/opentelemetry-ebpf-profiler/releases/tag/v0.0.202622).

CVE-2026-48496 Affected opentelemetry-ebpf-profiler Versions

1 component(s)
Fixed Versions:
0.0.202622
Product / Package Ecosystem Affected Versions Fixed Version
go.opentelemetry.io/ebpf-profiler
golang/go.opentelemetry.io/ebpf-profiler
Go
≥ 0.0.202527
< 0.0.202622
0.0.202622

References

GitHub Advisory / Wiki ADVISORY
https://github.com/open-telemetry/opentelemetry-ebpf-profiler/security/advisories/GHSA-f2r5-5m7w-p5cx
Security Fix Commit FIX COMMIT
https://github.com/open-telemetry/opentelemetry-ebpf-profiler/commit/234b685cab31c2cb2f79e966caeab168bcc489e4
opentelemetry-ebpf-profiler Source Repository REPOSITORY
https://github.com/open-telemetry/opentelemetry-ebpf-profiler
opentelemetry-ebpf-profiler Release RELEASE
https://github.com/open-telemetry/opentelemetry-ebpf-profiler/releases/tag/v0.0.202622

Frequently Asked Questions

What is CVE-2026-48496?
CVE-2026-48496 is a security vulnerability in opentelemetry-ebpf-profiler involving Unprivileged process can trigger a denial of service on the ebpf-profiler agent under CWE-770: Allocation of Resources Without Limits or Throttling.
Which opentelemetry-ebpf-profiler versions are affected?
Affected versions include releases prior to 0.0.202622 across affected packages: go.opentelemetry.io/ebpf-profiler.
What version fixes CVE-2026-48496?
Upgrading to 0.0.202622 (or the latest patched release for your respective branch) resolves the vulnerability.
Is go.opentelemetry.io/ebpf-profiler affected?
Yes, go.opentelemetry.io/ebpf-profiler is affected in releases prior to 0.0.202622. Upgrade your dependency to 0.0.202622 or later.
What is the CVSS score of CVE-2026-48496?
CVE-2026-48496 has a CVSS v3.1 base score of 6.2 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-48496?
CVE-2026-48496 is classified under CWE-770: Allocation of Resources Without Limits or Throttling (The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.).
How can I check Go dependencies for CVE-2026-48496?
Run the dependency tree command: 'inspect dependencies for go.opentelemetry.io/ebpf-profiler'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-f2r5-5m7w-p5cx",
  "modified" : "2026-06-23T22:16:14Z",
  "published" : "2026-06-23T22:16:14Z",
  "aliases" : [ "CVE-2026-48496" ],
  "summary" : "opentelemetry-ebpf-profiler: Unprivileged process can trigger a denial of service on the ebpf-profiler agent",
  "details" : "### Summary\n\nAn unprivileged process can easily trigger the `processPIDEvents` goroutine to be blocked indefinitely, preventing the goroutine from analyzing any new ELF file. The goroutine stays blocked in the `openat2` syscall forever and the profiler can no longer work properly, it is a denial of service.\n\n### Impact\n\nThe impact is limited to denial-of-service on the ebpf-profiler agent:\n- There has to be a malicious workload albeit unprivileged.\n- No exfiltration of data. No loss of data.\n\n###  Fix\n\nFixed in https://github.com/open-telemetry/opentelemetry-ebpf-profiler/commit/234b685cab31c2cb2f79e966caeab168bcc489e4.\n\nFix is part of [v.0.0.202622](https://github.com/open-telemetry/opentelemetry-ebpf-profiler/releases/tag/v0.0.202622).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "go.opentelemetry.io/ebpf-profiler"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.0.202527"
      }, {
        "fixed" : "0.0.202622"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/open-telemetry/opentelemetry-ebpf-profiler/security/advisories/GHSA-f2r5-5m7w-p5cx"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/open-telemetry/opentelemetry-ebpf-profiler/commit/234b685cab31c2cb2f79e966caeab168bcc489e4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/open-telemetry/opentelemetry-ebpf-profiler"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/open-telemetry/opentelemetry-ebpf-profiler/releases/tag/v0.0.202622"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-23T22:16:14Z",
    "nvd_published_at" : null
  }
}