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Munin munin-httpd through 2.999.18 Path Traversal via Static File Handler

6.9MediumCNA
Exploited
No known exploitation
Fix
Fix or patch referenced
Who is exposed
Not reported

Do first: Apply the patch listed under Evidence.

Published
Last modified
24/100 · provisional
None on Exploit-DB, Metasploit or GitHub

Summary

Munin's munin-httpd web server (affected releases up to 2.999.18) contains a path traversal flaw in its static file handler. An attacker can reach it remotely over the network without logging in, and use it to read files outside the static directory, including configuration files that may expose monitored service credentials.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

Munin munin-httpd 2.99.1 through 2.999.18 contains a path traversal vulnerability in the static file handler of Munin::Master::HTML::handle_request that allows unauthenticated attackers to read files outside the static directory. Attackers can request /static/../<file> to bypass the '/../' substring check and read munin.conf and plugin-conf.d files containing monitored service credentials.

cve.now Index

24Pcve.now Index 24 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure17/25No login or user action needed per the CVSS vector, reachable over the network without a login · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity6.9/10CVSS 6.9
  • No patch0/5No signal

What would change the score

  • Would score about 69 if added to CISA KEV
  • Would score about 64 if CISA's SSVC rates exploitation active
  • Would score about 29 if advisories confirm default setups are exposed

What to do

  • Apply the patch listed under Evidence.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • munin-monitoring munin

    From 2.99.1 · through 2.999.18

Evidence 5

  1. Patch
  2. Report
  3. Repository
  4. Repository
  5. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-125357

Is CVE-2026-125357 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-125357?

munin: from 2.99.1 through 2.999.18.Source: cve.now feed data