CVE-2008-3271

CVE-2008-3271 is a medium-severity vulnerability in Apache Tomcat with a CVSS 2.0 base score of 4.3. 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-264.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.3)
• EPSS exploit prediction: 5% (91st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-264
• Affected product: Apache Tomcat
• Published: 2008-10-13
• Last modified: 2026-06-16

Description

Apache Tomcat 5.5.0 and 4.1.0 through 4.1.31 allows remote attackers to bypass an IP address restriction and obtain sensitive information via a request that is processed concurrently with another request but in a different thread, leading to an instance-variable overwrite associated with a "synchronization problem" and lack of thread safety, and related to RemoteFilterValve, RemoteAddrValve, and RemoteHostValve.

Frequently asked questions

What is CVE-2008-3271?

Apache Tomcat 5.5.0 and 4.1.0 through 4.1.31 allows remote attackers to bypass an IP address restriction and obtain sensitive information via a request that is processed concurrently with another request but in a different thread, leading to an instance-variable overwrite associated with a "synchronization problem" and lack of thread safety, and related to RemoteFilterValve, RemoteAddrValve, and RemoteHostValve.

How severe is CVE-2008-3271?

CVE-2008-3271 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2008-3271 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-3271?

CVE-2008-3271 primarily affects Apache Tomcat. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-3271?

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

When was CVE-2008-3271 published?

CVE-2008-3271 was published on 2008-10-13 and last updated on 2026-06-16.

References

• http://jvn.jp/en/jp/JVN30732239/index.html
• http://jvndb.jvn.jp/en/contents/2008/JVNDB-2008-000069.html
• http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00012.html
• http://secunia.com/advisories/32213
• http://secunia.com/advisories/32234
• http://secunia.com/advisories/32398
• http://secunia.com/advisories/35684
• http://securityreason.com/securityalert/4396
• http://tomcat.apache.org/security-4.html
• http://tomcat.apache.org/security-5.html
• http://www.fujitsu.com/global/support/software/security/products-f/interstage-200806e.html
• http://www.nec.co.jp/security-info/secinfo/nv09-006.html
• http://www.securityfocus.com/archive/1/497220/100/0/threaded
• http://www.securityfocus.com/bid/31698
• http://www.securitytracker.com/id?1021039
• http://www.vupen.com/english/advisories/2008/2793
• http://www.vupen.com/english/advisories/2008/2800
• http://www.vupen.com/english/advisories/2009/1818
• https://exchange.xforce.ibmcloud.com/vulnerabilities/45791
• https://issues.apache.org/bugzilla/show_bug.cgi?id=25835
• https://lists.apache.org/thread.html/29dc6c2b625789e70a9c4756b5a327e6547273ff8bde7e0327af48c5%40%3Cdev.tomcat.apache.org%3E
• https://lists.apache.org/thread.html/c62b0e3a7bf23342352a5810c640a94b6db69957c5c19db507004d74%40%3Cdev.tomcat.apache.org%3E
• https://lists.apache.org/thread.html/rb71997f506c6cc8b530dd845c084995a9878098846c7b4eacfae8db3%40%3Cdev.tomcat.apache.org%3E

Affected products (34)

• cpe:2.3:a:apache:tomcat:4.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.3:beta:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.7:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.8:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.9:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.10:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.11:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.12:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.13:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.14:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.15:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.16:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.17:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.18:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.19:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.20:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.21:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.22:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.23:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.24:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.25:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.26:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.27:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.28:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.29:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.30:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:4.1.31:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.0:*:*:*:*:*:*:*

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