---
title: "CVE-2025-41118: Pyroscope Exposes Storage Secret"
url: https://erroneo.us/security/cve/CVE-2025-41118/
description: "CVE-2025-41118 (github.com/grafana/pyroscope (Go)): Pyroscope is an open-source continuous profiling database. The database supports various storage…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-04-15
date_modified: 2026-08-27
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-41118"
kev: false
cvss: 9.1
epss: 0.00407
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-41118: Pyroscope Exposes Storage Secret

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.4% , percentile 34: FIRST’s model estimates a 0.4% chance of exploitation activity in the next 30 days, higher than 34% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes github.com/grafana/pyroscope (Go) < 1.15.2, fixed in 1.15.2 ; github.com/grafana/pyroscope (Go) >= 1.16.0, < 1.16.1, fixed in 1.16.1 . Check your lockfile, including transitive dependencies.

## What it is

Pyroscope is an open-source continuous profiling database. The database supports various storage backends, including Tencent Cloud Object Storage (COS). If the database is configured to use Tencent COS as the storage backend, an attacker could extract the secretkey configuration value from the Pyroscope API. To exploit this vulnerability, an attacker needs direct access to the Pyroscope API. We highly recommend limiting the public internet exposure of all our databases, such that they are only accessible by trusted users or internal systems. This vulnerability is fixed in versions: 1.15.x: 1.15.2 and above. 1.16.x: 1.16.1 and above. 1.17.x: 1.17.0 and above (i.e. all versions). Thanks to Théo Cusnir for reporting this vulnerability to us via our bug bounty program.

## Affected packages

- Go `github.com/grafana/pyroscope` < 1.15.2 → fixed: 1.15.2
- Go `github.com/grafana/pyroscope` >= 1.16.0, < 1.16.1 → fixed: 1.16.1

## Affected products (CVE record)

- Grafana Pyroscope: 1.0.0 < 1.16.0

## Severity

- GRAFANA CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`
- redhat-SADP CVSS 3.1: 7.5 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.41% probability of exploitation activity in the next 30 days; percentile 34.

## Sources

- [grafana.com](https://grafana.com/security/security-advisories/cve-2025-41118)
- [access.redhat.com](https://access.redhat.com/errata/RHSA-2026:24503)
- [GitHub Advisory GHSA-m9hq-h476-h2g8](https://github.com/advisories/GHSA-m9hq-h476-h2g8)
- [CVE.org record CVE-2025-41118](https://www.cve.org/CVERecord?id=CVE-2025-41118)
- [NVD entry CVE-2025-41118](https://nvd.nist.gov/vuln/detail/CVE-2025-41118)
- [access.redhat.com](https://access.redhat.com/security/cve/CVE-2025-41118)
- [RHBZ#2458796](https://bugzilla.redhat.com/show_bug.cgi?id=2458796)
- [security.access.redhat.com](https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-41118.json)

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Source page: https://erroneo.us/security/cve/CVE-2025-41118/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt