CVE-2008-5646: Unspecified vulnerability in Trac before 0.11.2 allows attackers to cause a denial of service via unknown atta

Q: How do I fix CVE-2008-5646?

trac: upgrade to newer than 0.11.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2008-5646 being exploited?

CVE-2008-5646 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-2008-5646 affect?

CVE-2008-5646 affects trac. Severity is high (CVSS 7.5). Unspecified vulnerability in Trac before 0.11.2 allows attackers to cause a denial of service via unknown attack vectors related to "certain wiki markup."

This month

HIGH 7.5UPGRADE

CVE-2008-5646 is a high-severity flaw (CVSS 7.5) affecting trac. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in Trac before 0.11.2 allows attackers to cause a denial of service via unknown attack vectors related to "certain wiki markup."

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Published	2008-12-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: trac

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

Am I affected?

Timeline

2008-12-17 18:30 UTCPublished CVE record published
2026-06-16 23:00 UTCUpdated Record last modified

trac trac UPGRADE

Affected: all versions · <= 0.11.2.1 · 0.5 · 0.5.1 · 0.5.2 · 0.6 · 0.6.1 · 0.7

Fixed in: newer than 0.11.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.11.2.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade trac

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-2008-5646?

trac: upgrade to newer than 0.11.2.1. Exact commands for each OS are on this page.

Is CVE-2008-5646 being exploited?

CVE-2008-5646 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-2008-5646 affect?

CVE-2008-5646 affects trac. Severity is high (CVSS 7.5). Unspecified vulnerability in Trac before 0.11.2 allows attackers to cause a denial of service via unknown attack vectors related to "certain wiki markup."

How urgent is CVE-2008-5646?

Priority 43/100. High severity

Related CVEs

CVE-2010-5108 HIGH 7.5 DOWNGRADE MITIGATE Trac 0.11.6 does not properly check workflow permissions before modifying a ticket
CVE-2009-4405 HIGH 7.5 UPGRADE Multiple unspecified vulnerabilities in Trac before 0.11.6 have unknown impact and attack vectors, possibly re
CVE-2008-5647 MEDIUM 5.0 UPGRADE Unspecified vulnerability in the HTML sanitizer filter in Trac before 0.11.2 allows attackers to conduct phish

References

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