CVE-2006-6146: Buffer overflow in the HPDF_Page_Circle function in hpdf_page_operator.c in Takeshi Kanno Haru Free PDF Librar

Routine

LOW 2.6DOWNGRADE

CVE-2006-6146 is a low-severity flaw (CVSS 2.6) affecting haru free pdf library. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the HPDF_Page_Circle function in hpdf_page_operator.c in Takeshi Kanno Haru Free PDF Library (libharu2, aka libharu) 2.0.7 and earlier allows context-dependent attackers to cause a denial of service (application crash) via certain arguments that yield a large amount of PDF data, as demonstrated by a filled circle.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	2.6 (Low)
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Published	2006-11-28
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: takeshi kanno

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

Am I affected?

Timeline

2006-11-28 23:28 UTCPublished CVE record published
2026-06-16 22:32 UTCUpdated Record last modified

takeshi kanno haru free pdf library DOWNGRADE

Affected: 2.0 · 2.0.1 · 2.0.2 · 2.0.3 · 2.0.4 · 2.0.5 · 2.0.6 · 2.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy haru-free-pdf-library || rpm -q haru-free-pdf-library || haru-free-pdf-library --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison haru-free-pdf-library sudo apt install haru-free-pdf-library=<VERSION_BEFORE_2.0> sudo apt-mark hold haru-free-pdf-library

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

dnf --showduplicates list haru-free-pdf-library sudo dnf downgrade haru-free-pdf-library-<VERSION_BEFORE_2.0> sudo dnf versionlock add haru-free-pdf-library

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-2006-6146?

haru free pdf library: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-6146 being exploited?

CVE-2006-6146 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-2006-6146 affect?

CVE-2006-6146 affects haru free pdf library. Severity is low (CVSS 2.6). Buffer overflow in the HPDF_Page_Circle function in hpdf_page_operator.c in Takeshi Kanno Haru Free PDF Library (libharu2, aka libharu) 2.0.7 and earlier allows context-dependent attackers to cause a denial of service (application crash) vi

How urgent is CVE-2006-6146?

Priority 27/100. No elevated risk signals yet.

References

← Back to latest CVEs