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Vulnerability Database · Debian · Package report

mosquitto: vulnerability history, versions and safety

mosquitto is a package in the Debian ecosystem. Vulert records 4 vulnerabilities for it across 4 releases, from May 2017 to Oct 2019. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.

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4 vulnerabilities recorded U4
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0 with no fix published

Every vulnerability has a patched version to move to.

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0 in the last 12 months

Nothing new recorded in the last year.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all mosquitto vulnerabilities

Vulert verdict on mosquitto i

Updated on 23 Oct 2026

Every vulnerability Vulert records for this package has a fix, and the newest was recorded 26 Oct 2019. Apply the fixes listed below and you are clear.

Long-term outlook: usable, with an upgrade 4 vulnerabilities on record across 2 years, none in the last year.

What to do: Move the affected dependencies to the fixed versions listed below, then keep the package monitored so the next vulnerability reaches you. Fix it, then keep watch: Vulert alerts you when a new vulnerability affects the version you run. Monitor it with Vulert →

  • Vulnerabilities on record 4 over 2 years · 0 in the last year i
  • Latest disclosure 26 Oct 2019 i
  • Highest CVSS n/a i
  • With no published fix 0 i

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01 Versions

Which versions are affected

Every version Vulert holds for mosquitto, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.

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Version Vulert vulnerabilities Fix published Details
1.3.4-2 U4 Yes Details →
1.3.4-2+deb8u3 U1 Yes Details →
1.3.4-2+deb8u2 U2 Yes Details →
1.3.4-2+deb8u1 U3 Yes Details →

Newest 4 of 4 versions on record. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2017 1
  • 2018 2
  • 2019 1

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 4 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for mosquitto

The 4 most severe of 4 vulnerabilities recorded for this package

Search all 4 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Security Update for mosquitto package N/A unrated 1.3.4-2+deb8u2 29 Jun 2018
Security Update for mosquitto N/A unrated 1.3.4-2+deb8u3 28 Sep 2018
Security Update for mosquitto N/A unrated 1.3.4-2+deb8u4 26 Oct 2019
Security Update for Mosquitto MQTT Broker N/A unrated 1.3.4-2+deb8u1 29 May 2017

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Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315

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Questions

About mosquitto

Is mosquitto safe to use?

Vulert records 4 vulnerabilities for mosquitto in Debian: 0 critical, 0 high, 0 medium and 0 low, plus 4 not yet rated. Every one of them has a published fix, so the practical answer is to run a supported release and keep it patched.

How many vulnerabilities does mosquitto have?

4 vulnerabilities are recorded for mosquitto in the Debian ecosystem: 0 critical, 0 high, 0 medium and 0 low, plus 4 not yet rated. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new mosquitto vulnerabilities disclosed?

0 vulnerabilities were recorded for mosquitto in the last 12 months, and the oldest entry in this database dates to 29 May 2017. Recency matters more than a lifetime total: it shows how actively new issues are being disclosed for the package you are considering.

Which versions of mosquitto are affected?

Each vulnerability on this page lists the affected version range and the fixed version to move to. Open the vulnerability for the version you actually run — fixes are specific to a release line, not to the package as a whole.

How do I monitor mosquitto for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the mosquitto version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.