CWE-488
AllowedExposure of Data Element to Wrong Session
Abstraction: Base · Status: Draft
The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.
81 vulnerabilities reference this CWE, most recent first.
GHSA-X9RC-P36X-296J
Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31IBM ContextForge MCP Gateway - Translate utility <= 1.0.8 MCP Context Forge could allow a remote attacker to obtain sensitive information from other sessions due to exposure of data elements to the wrong session.
{
"affected": [],
"aliases": [
"CVE-2026-18489"
],
"database_specific": {
"cwe_ids": [
"CWE-488"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-04T17:16:56Z",
"severity": "HIGH"
},
"details": "IBM ContextForge MCP Gateway - Translate utility \u003c= 1.0.8 MCP Context Forge could allow a remote attacker to obtain sensitive information from other sessions due to exposure of data elements to the wrong session.",
"id": "GHSA-x9rc-p36x-296j",
"modified": "2026-09-04T18:31:31Z",
"published": "2026-09-04T18:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18489"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7286056"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation
Protect the application's sessions from information leakage. Make sure that a session's data is not used or visible by other sessions.
Mitigation
Use a static analysis tool to scan the code for information leakage vulnerabilities (e.g. Singleton Member Field).
Mitigation
In a multithreading environment, storing user data in Servlet member fields introduces a data access race condition. Do not use member fields to store information in the Servlet.
CAPEC-59: Session Credential Falsification through Prediction
This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
CAPEC-60: Reusing Session IDs (aka Session Replay)
This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.