How severe is CVE-2011-1183?

CVE-2011-1183 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2011-1183 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1183?

CVE-2011-1183 affects Apache Tomcat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-1183?

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

When was CVE-2011-1183 published?

CVE-2011-1183 was published on 2011-04-08 and last updated on 2026-06-16.

CVE-2011-1183

CVE-2011-1183 is a medium-severity vulnerability in Apache Tomcat with a CVSS 2.0 base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Tomcat
Published: 2011-04-08
Last modified: 2026-06-16

Description

Apache Tomcat 7.0.11, when web.xml has no login configuration, does not follow security constraints, which allows remote attackers to bypass intended access restrictions via HTTP requests to a meta-data complete web application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1088 and CVE-2011-1419.

Frequently asked questions

What is CVE-2011-1183?: Apache Tomcat 7.0.11, when web.xml has no login configuration, does not follow security constraints, which allows remote attackers to bypass intended access restrictions via HTTP requests to a meta-data complete web application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1088 and CVE-2011-1419.
How severe is CVE-2011-1183?: CVE-2011-1183 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2011-1183 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1183?: CVE-2011-1183 affects Apache Tomcat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1183?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1183 published?: CVE-2011-1183 was published on 2011-04-08 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:apache:tomcat:7.0.11:*:*:*:*:*:*:*

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