CVE-2008-6521: index.php in Terracotta (aka OpenTerracotta) 0.6.1 allows remote attackers to obtain sensitive information via

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HIGH 7.8DOWNGRADE

CVE-2008-6521 is a high-severity flaw (CVSS 7.8) affecting openterracotta. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

index.php in Terracotta (aka OpenTerracotta) 0.6.1 allows remote attackers to obtain sensitive information via an invalid File parameter, which reveals the installation path in an error message.

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-200
Published	2009-03-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: devraj mukherjee

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

Am I affected?

Timeline

2009-03-25 18:30 UTCPublished CVE record published
2026-06-16 23:02 UTCUpdated Record last modified

devraj mukherjee openterracotta DOWNGRADE

Affected: 0.6.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.6.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.6.1 (Debian / Ubuntu)

apt-cache madison openterracotta sudo apt install openterracotta=<VERSION_BEFORE_0.6.1> sudo apt-mark hold openterracotta

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

dnf --showduplicates list openterracotta sudo dnf downgrade openterracotta-<VERSION_BEFORE_0.6.1> sudo dnf versionlock add openterracotta

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-2008-6521?

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

Is CVE-2008-6521 being exploited?

CVE-2008-6521 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-2008-6521 affect?

CVE-2008-6521 affects openterracotta. Severity is high (CVSS 7.8). index.php in Terracotta (aka OpenTerracotta) 0.6.1 allows remote attackers to obtain sensitive information via an invalid File parameter, which reveals the installation path in an error message.

How urgent is CVE-2008-6521?

Priority 45/100. High severity

Software pages

PHP vulnerabilities

Related CVEs

CVE-2008-6522 MEDIUM 6.8 DOWNGRADE Multiple directory traversal vulnerabilities in the RenderFile function in ContentRender.class.php in Terracot

References

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