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Vulnerability Database · Debian · Package report

modsecurity-apache: vulnerability history, versions and safety

modsecurity-apache is a package in the Debian ecosystem. Vulert records 21 vulnerabilities for it across 5 releases, from Jul 2012 to Sep 2025. 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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21 vulnerabilities recorded U21
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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 modsecurity-apache vulnerabilities

Vulert verdict on modsecurity-apache i

Updated on 23 Oct 2026

Every vulnerability Vulert records for this package has a fix, and the newest was recorded 07 Sep 2025. Apply the fixes listed below and you are clear.

Long-term outlook: usable, with an upgrade 21 vulnerabilities on record across 13 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 21 over 13 years · 0 in the last year i
  • Latest disclosure 07 Sep 2025 i
  • Highest CVSS 7.5 i
  • With no published fix 0 i

Concerned about your application's security?

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01 Versions

Which versions are affected

Every version Vulert holds for modsecurity-apache, 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
2.9.3-3 U11 Yes Details →
2.9.3-3+deb11u4 U3 Yes Details →
2.9.3-3+deb11u3 U6 Yes Details →
2.9.3-3+deb11u2 U9 Yes Details →
2.9.3-3+deb11u1 U11 Yes Details →

Newest 5 of 5 versions on record. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2012 4
  • 2013 4
  • 2014 2
  • 2023 2
  • 2025 9

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 21 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for modsecurity-apache

The 5 most severe of 21 vulnerabilities recorded for this package

Search all 21 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Web Application Firewall Bypass in ModSecurity: CVE-2023-24021 7.5 high 2.9.3-3+deb11u2 20 Jan 2023
Critical XXE Vulnerability in ModSecurity-Apache: Remote File Access and Denial of Service Risk N/A unrated 2.6.6-6 25 Apr 2013
Critical Vulnerability in ModSecurity for Apache: Bypass of Security Rules N/A unrated 2.7.7-1 15 Apr 2014
Critical Vulnerability in ModSecurity-Apache: HTTP Response Content-Type Override N/A unrated 2.9.3-3+deb11u5 06 Aug 2025
Denial of Service Vulnerability in ModSecurity-Apache: Critical Update Required N/A unrated 2.9.3-3+deb11u3 21 May 2025

Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback

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

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Questions

About modsecurity-apache

Is modsecurity-apache safe to use?

Vulert records 21 vulnerabilities for modsecurity-apache in Debian: 0 critical, 0 high, 0 medium and 0 low, plus 21 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 modsecurity-apache have?

21 vulnerabilities are recorded for modsecurity-apache in the Debian ecosystem: 0 critical, 0 high, 0 medium and 0 low, plus 21 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 modsecurity-apache vulnerabilities disclosed?

0 vulnerabilities were recorded for modsecurity-apache in the last 12 months, and the oldest entry in this database dates to 22 Jul 2012. 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 modsecurity-apache 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 modsecurity-apache for upcoming vulnerabilities?

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