How severe is CVE-2009-5101?

CVE-2009-5101 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-5101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-5101?

CVE-2009-5101 primarily affects Pentaho Bi Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-5101?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-5101 published?

CVE-2009-5101 was published on 2011-09-13 and last updated on 2026-06-16.

CVE-2009-5101

CVE-2009-5101 is a medium-severity vulnerability in Pentaho Bi Server with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Pentaho Bi Server
Published: 2011-09-13
Last modified: 2026-06-16

Description

Pentaho BI Server 1.7.0.1062 and earlier includes the session ID (JSESSIONID) in the URL, which allows attackers to obtain it from session history, referer headers, or sniffing of web traffic.

Frequently asked questions

What is CVE-2009-5101?: Pentaho BI Server 1.7.0.1062 and earlier includes the session ID (JSESSIONID) in the URL, which allows attackers to obtain it from session history, referer headers, or sniffing of web traffic.
How severe is CVE-2009-5101?: CVE-2009-5101 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-5101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-5101?: CVE-2009-5101 primarily affects Pentaho Bi Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-5101?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-5101 published?: CVE-2009-5101 was published on 2011-09-13 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:pentaho:bi_server:*:*:*:*:*:*:*:*
cpe:2.3:a:pentaho:bi_server:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:pentaho:bi_server:1.6.0:*:*:*:*:*:*:*

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