CVE-2006-3379: Algorithmic complexity vulnerability in Hiki Wiki 0.6.0 through 0.6.5 and 0.8.0 through 0.8.5 allows remote at

Routine

MEDIUM 5.0DOWNGRADE

CVE-2006-3379 is a medium-severity flaw (CVSS 5.0) affecting hiki wiki. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Algorithmic complexity vulnerability in Hiki Wiki 0.6.0 through 0.6.5 and 0.8.0 through 0.8.5 allows remote attackers to cause a denial of service (CPU consumption) by performing a diff between large, crafted pages that trigger the worst case.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Published	2006-07-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: hiki wiki

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

Am I affected?

Timeline

2006-07-06 20:05 UTCPublished CVE record published
2026-06-16 22:26 UTCUpdated Record last modified

hiki wiki hiki wiki DOWNGRADE

Affected: 0.6.0 · 0.6.1 · 0.6.2 · 0.6.3 · 0.6.4 · 0.6.5 · 0.8.0 · 0.8.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.6.0

1. Check installed version

apt-cache policy hiki-wiki || rpm -q hiki-wiki || hiki-wiki --version

2. No fixed release: DOWNGRADE to a release before 0.6.0 (Debian / Ubuntu)

apt-cache madison hiki-wiki sudo apt install hiki-wiki=<VERSION_BEFORE_0.6.0> sudo apt-mark hold hiki-wiki

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list hiki-wiki sudo dnf downgrade hiki-wiki-<VERSION_BEFORE_0.6.0> sudo dnf versionlock add hiki-wiki

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2006-3379?

hiki wiki: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-3379 being exploited?

CVE-2006-3379 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-2006-3379 affect?

CVE-2006-3379 affects hiki wiki. Severity is medium (CVSS 5.0). Algorithmic complexity vulnerability in Hiki Wiki 0.6.0 through 0.6.5 and 0.8.0 through 0.8.5 allows remote attackers to cause a denial of service (CPU consumption) by performing a diff between large, crafted pages that trigger the worst ca

How urgent is CVE-2006-3379?

Priority 38/100. No elevated risk signals yet.

References

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