mod_jk: session information leak
Published Apr 9, 2009
2.6
LOWCVSS 2.0
EPSS 7.26%
Description
The JK Connector (aka mod_jk) 1.2.0 through 1.2.26 in Apache Tomcat allows remote attackers to obtain sensitive information via an arbitrary request from an HTTP client, in opportunistic circumstances involving (1) a request from a different client that included a Content-Length header but no POST data or (2) a rapid series of requests, related to noncompliance with the AJP protocol's requirements for requests containing Content-Length headers.
Affected products
No data.
Configuration 1
- 1.2
- 1.2.1
- 1.2.6
- 1.2.7
- 1.2.8
- 1.2.9
- 1.2.10
- 1.2.11
- 1.2.12
- 1.2.13
- 1.2.14
- 1.2.14.1
- 1.2.15
- 1.2.16
- 1.2.17
- 1.2.18
- 1.2.19
- 1.2.20
- 1.2.21
- 1.2.22
- 1.2.23
- 1.2.24
- 1.2.25
- 1.2.26
Configuration 2
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.0.5
- 4.0.6
- 4.1.0
- 4.1.1
- 4.1.2
- 4.1.3
- 4.1.3
- 4.1.4
- 4.1.5
- 4.1.6
- 4.1.7
- 4.1.8
- 4.1.9
- 4.1.9
- 4.1.10
- 4.1.11
- 4.1.12
- 4.1.13
- 4.1.14
- 4.1.15
- 4.1.16
- 4.1.17
- 4.1.18
- 4.1.19
- 4.1.20
- 4.1.21
- 4.1.22
- 4.1.23
- 4.1.24
- 4.1.25
- 4.1.26
- 4.1.27
- 4.1.28
- 4.1.29
- 4.1.30
- 4.1.31
- 4.1.32
- 4.1.33
- 4.1.34
- 4.1.35
- 4.1.36
- 5.0.0
- 5.0.1
- 5.0.2
- 5.0.3
- 5.0.4
- 5.0.5
- 5.0.6
- 5.0.7
- 5.0.8
- 5.0.9
- 5.0.10
- 5.0.11
- 5.0.12
- 5.0.13
- 5.0.14
- 5.0.15
- 5.0.16
- 5.0.17
- 5.0.18
- 5.0.19
- 5.0.21
- 5.0.22
- 5.0.23
- 5.0.24
- 5.0.25
- 5.0.26
- 5.0.27
- 5.0.28
- 5.0.29
- 5.0.30
- 5.5.0
- 5.5.1
- 5.5.2
- 5.5.3
- 5.5.4
- 5.5.5
- 5.5.6
- 5.5.7
- 5.5.8
- 5.5.9
- 5.5.10
- 5.5.11
- 5.5.12
- 5.5.13
- 5.5.14
- 5.5.15
- 5.5.16
- 5.5.17
- 5.5.18
- 5.5.19
- 5.5.20
- 5.5.21
- 5.5.22
- 5.5.23
- 5.5.24
- 5.5.25
- 5.5.26
- 5.5.27
No data.
RHAPS Version 2 for RHEL 4
mod_jk-0:1.2.28-1jpp_3rh
Fixed · RHSA-2009:1087
Red Hat Network Satellite Server v 5.1
mod_jk-0:1.2.25-10
Fixed · RHSA-2009:1618
Red Hat Network Satellite Server v 5.2
mod_jk-0:1.2.25-10
Fixed · RHSA-2009:1618
| Product | Package | State | Advisory |
|---|---|---|---|
| RHAPS Version 2 for RHEL 4 | mod_jk-0:1.2.28-1jpp_3rh | Fixed | RHSA-2009:1087 |
| Red Hat Network Satellite Server v 5.1 | mod_jk-0:1.2.25-10 | Fixed | RHSA-2009:1618 |
| Red Hat Network Satellite Server v 5.2 | mod_jk-0:1.2.25-10 | Fixed | RHSA-2009:1618 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:H/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.26% (0.07263) | 94.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.26% (0.07263) | 93.53th | v5 (v2026.06.15) |
| Dec 28, 2025 | 4.56% (0.04557) | 88.83th | v4 (v2025.03.14) |
| Dec 27, 2025 | 5.79% (0.05789) | 90.25th | v4 (v2025.03.14) |
| Oct 28, 2025 | 4.56% (0.04557) | 88.67th | v4 (v2025.03.14) |
| Oct 27, 2025 | 5.79% (0.05789) | 90.12th | v4 (v2025.03.14) |
| Oct 1, 2025 | 4.55% (0.04547) | 88.76th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.78% (0.05777) | 89.55th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.28% (0.09282) | 87.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.78% (0.05777) | 89.80th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.17% (0.00172) | 55.52th | v3 (v2023.03.01) |
| Dec 29, 2023 | 0.17% (0.00172) | 54.25th | v3 (v2023.03.01) |
| Nov 18, 2023 | 0.20% (0.00197) | 57.46th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.26% (0.00255) | 61.60th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.34% (0.07344) | 92.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.34% (0.07344) | 91.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.34% (0.07344) | 80.64th | v2 (v2022.01.01) |
References (29)
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html vendor-advisoryx_refsource_SUSE
- http://mail-archives.apache.org/mod_mbox/www-announce/200904.mbox/%3C49DBBAC0.2080400%40apache.org%3E mailing-listx_refsource_MLIST
- http://marc.info/?l=tomcat-dev&m=123913700700879 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/29283 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34621 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/35537 third-party-advisoryx_refsource_SECUNIA
- http://securitytracker.com/id?1022001 vdb-entryx_refsource_SECTRACK
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-262468-1 vendor-advisoryx_refsource_SUNALERT
- http://svn.eu.apache.org/viewvc/tomcat/connectors/trunk/jk/native/common/jk_ajp_common.c?r1=702387&r2=702540&pathrev=702540&diff_format=h x_refsource_CONFIRMVendor Advisory
- http://svn.eu.apache.org/viewvc/tomcat/connectors/trunk/jk/xdocs/miscellaneous/changelog.xml?view=markup&pathrev=702540 x_refsource_CONFIRMExploitVendor Advisory
- http://svn.eu.apache.org/viewvc?view=rev&revision=702540 x_refsource_CONFIRMVendor Advisory
- http://tomcat.apache.org/connectors-doc/miscellaneous/changelog.html x_refsource_CONFIRMVendor Advisory
- http://tomcat.apache.org/security-jk.html x_refsource_CONFIRMVendor Advisory
- http://www.debian.org/security/2009/dsa-1810 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2009/04/08/10 mailing-listx_refsource_MLIST
- http://www.redhat.com/support/errata/RHSA-2009-0446.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/502530/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/34412 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2009/0973 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2008-5519 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=490201 x_refsource_CONFIRMVendor AdvisoryIssue Tracking
- https://lists.apache.org/thread.html/277d42b48b6e9aef50949c0dcc79ce21693091d73da246b3c1981925%40%3Cdev.tomcat.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/5b7a23e245c93235c503900da854a143596d901bf1a1f67e851a5de4%40%3Cdev.tomcat.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/8d2a579bbd977c225c70cb23b0ec54865fb0dab5da3eff1e060c9935%40%3Cdev.tomcat.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r5c616dfc49156e4b06ffab842800c80f4425924d0f20c452c127a53c%40%3Cdev.tomcat.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d%40%3Cdev.tomcat.apache.org%3E mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2008-5519
- https://www.cve.org/CVERecord?id=CVE-2008-5519
Change history (0)
No recorded changes yet.