CVE-2008-5676: Multiple unspecified vulnerabilities in the ModSecurity (aka mod_security) module 2.5.0 through 2.5.5 for the

Q: How do I fix CVE-2008-5676?

modsecurity: upgrade to newer than 2.5.5. Exact commands for each OS are on this page.

Q: Is CVE-2008-5676 being exploited?

CVE-2008-5676 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2008-5676 affect?

CVE-2008-5676 affects modsecurity. Severity is medium (CVSS 5.0). Multiple unspecified vulnerabilities in the ModSecurity (aka mod_security) module 2.5.0 through 2.5.5 for the Apache HTTP Server, when SecCacheTransformations is enabled, allow remote attackers to cause a denial of service (daemon crash) or

Q: How urgent is CVE-2008-5676?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2008-5676 is a medium-severity flaw (CVSS 5.0) affecting modsecurity. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple unspecified vulnerabilities in the ModSecurity (aka mod_security) module 2.5.0 through 2.5.5 for the Apache HTTP Server, when SecCacheTransformations is enabled, allow remote attackers to cause a denial of service (daemon crash) or bypass the product's functionality via unknown vectors related to "transformation caching."

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2008-12-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: breach

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2008-12-19 01:52 UTCPublished CVE record published
2026-06-16 23:00 UTCUpdated Record last modified

breach modsecurity UPGRADE

Affected: <= 2.5.0 · <= 2.5.5 · 2.5.1 · 2.5.2 · 2.5.3 · 2.5.4

Fixed in: newer than 2.5.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy modsecurity || rpm -q modsecurity || modsecurity --version

2. UPGRADE to newer than 2.5.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade modsecurity

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade modsecurity

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2008-5676?

modsecurity: upgrade to newer than 2.5.5. Exact commands for each OS are on this page.

Is CVE-2008-5676 being exploited?

CVE-2008-5676 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2008-5676 affect?

CVE-2008-5676 affects modsecurity. Severity is medium (CVSS 5.0). Multiple unspecified vulnerabilities in the ModSecurity (aka mod_security) module 2.5.0 through 2.5.5 for the Apache HTTP Server, when SecCacheTransformations is enabled, allow remote attackers to cause a denial of service (daemon crash) or

How urgent is CVE-2008-5676?

Priority 36/100. No elevated risk signals yet.

Software pages

Apache HTTP Server vulnerabilities

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References

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