CVE-2015-5346

Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments…

Published Feb 25, 2016 · corrected/updated Oct 14, 2026 · n/a n/a · evidence confidence high

Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments of multiple versions of the same web application, might allow remote attackers to hijack web sessions by leveraging use of a requestedSessionSSL field for an unintended request, related to CoyoteAdapter.java and Request.java.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2015-5346 is a high public vulnerability record for n/a n/a. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether n/a n/a is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: apache/tomcat (7.0.0); apache/tomcat (7.0.10); apache/tomcat (7.0.11); apache/tomcat (7.0.12). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 8.1, EPSS 10.6%. It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: circl, cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

Feb 25, 2016 · NIST NVD
Detected
Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments of multiple versions of the same web application, might allow remote attackers to hijack web sessions by leveraging use of a requestedSessionSSL field for an unintended request, related to CoyoteAdapter.java and Request.java.
Oct 14, 2026 · NIST NVD
Updated
Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments of multiple versions of the same web application, might allow remote attackers to hijack web sessions by leveraging use of a requestedSessionSSL field for an unintended request, related to CoyoteAdapter.java and Request.java.

Affected

cpe apache/tomcat7.0.0
cpe apache/tomcat7.0.10
cpe apache/tomcat7.0.11
cpe apache/tomcat7.0.12
cpe apache/tomcat7.0.2
cpe apache/tomcat7.0.4
cpe apache/tomcat7.0.5
cpe apache/tomcat7.0.6
cpe canonical/ubuntu linux12.04
cpe debian/debian linux7.0
vendor n/a n/aversion unspecified

Sources

CIRCL Vulnerability LookupVulnerability recordCVE-2015-5346
Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments of multiple versions of the same web application, might allow remote attackers to hijack web sessions by leverag
vulnerability.circl.lu
CVE.orgVulnerability recordCVE-2015-5346
Official CVE identifier
cve.org
FIRST EPSSExploitation probabilityCVE-2015-5346
30-day exploitation probability 10.6%
first.org
NIST NVDVulnerability recordCVE-2015-5346
Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments of multiple versions of the same web application, might allow remote attackers to hijack web sessions by leverag
nvd.nist.gov
Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/135890/Apache-Tomcat-Session-Fixation.html
Packet Storm link already published on the finding.
packetstormsecurity.com