# CVE-2026-48496: opentelemetry-ebpf-profiler: Unprivileged process can trigger a denial of service on the ebpf-profiler agent

> An unprivileged process can cause the OpenTelemetry eBPF Profiler to block indefinitely by opening a FIFO, resulting in a denial of service.

- **Severity:** Medium 6.2 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 11 Sep 2026
- **Updated:** 14 Sep 2026
- **Also known as:** CLEANSTART-2026-BY72509, CLEANSTART-2026-LX44302, CLEANSTART-2026-MV27446, CLEANSTART-2026-OS96290, CLEANSTART-2026-XW68310, ECHO-4cc0-1065-45dd, GHSA-f2r5-5m7w-p5cx, GO-2026-5343, MINI-66q4-9qgw-73wj, MINI-gp9h-7964-5qpr, MINI-hwfg-48q4-48xj, MINI-jgr4-gx78-847m, MINI-jgw5-wx58-49cj

## What is CVE-2026-48496?

CVE-2026-48496 is a medium-severity denial of service vulnerability in open-telemetry opentelemetry-ebpf-profiler, published on 11 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

OpenTelemetry eBPF Profiler is a production-scale agent for profiling applications across multiple programming languages. Starting in version 0.0.202527 and prior to version 0.0.202622, an unprivileged process can cause the profiler to open a nonregular mapping file, such as a FIFO, and block indefinitely, preventing further ELF analysis and causing a denial of service. Version 0.0.202622 contains a patch. No known workarounds are available.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2026-48496?

3 open source packages ship an affected version, including go.opentelemetry.io/ebpf-profiler.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `go.opentelemetry.io/ebpf-profiler` | Go | From 0.0.202527 | 0.0.202622 |
| `go.opentelemetry.io/ebpf-profiler` | Go | From 0.0.202527 | 0.0.202622 |
| `go.opentelemetry.io/ebpf-profiler` | Go | From 0.0.202527 | 0.0.202622 |

## How do I fix CVE-2026-48496?

Upgrade go.opentelemetry.io/ebpf-profiler to 0.0.202622 or later.

## Is CVE-2026-48496 being exploited?

There is no known exploitation of CVE-2026-48496 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48496 and fix it if it is affected.

What it is: CVE-2026-48496 is a medium-severity denial of service vulnerability in open-telemetry opentelemetry-ebpf-profiler, published on 11 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-48496 in the wild and no public exploit code.

Affected packages and fixed versions:
- go.opentelemetry.io/ebpf-profiler (Go): affected from 0.0.202527; fixed in 0.0.202622
- go.opentelemetry.io/ebpf-profiler (Go): affected from 0.0.202527; fixed in 0.0.202622
- go.opentelemetry.io/ebpf-profiler (Go): affected from 0.0.202527; fixed in 0.0.202622

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-48496/ (Markdown: https://insights.sbomify.com/CVE-2026-48496/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48496
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48496
- OSV: https://osv.dev/vulnerability/CVE-2026-48496

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48496/
Summaries are generated and may contain mistakes; the official description above is the record.