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CVE-2026-15661— IBM Concert Software Improper Output Neutralization for Logs

Quick assessment

Affected
IBM Concert
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM Concert 1.0 至 3.0.0 版本中，由于在将数据写入日志文件时未能正确中和特殊元素，可能导致未经授权的用户向日志消息中注入数据。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1070.001

Affected Version Matrix 1

VendorProduct Version RangeStatus
IBM Concert 1.0.0≤ 3.0.0 affected
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I. Basic Information for CVE-2026-15661

Vulnerability Information
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Vulnerability Title
IBM Concert Software Improper Output Neutralization for Logs
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Concert 1.0 through 3.0.0 could allow an unauthorized user to inject data into log messages due to improper neutralization of special elements when written to log files.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
日志输出的转义处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM Concert 1.0.0 ~ 3.0.0 -

II. Public POCs for CVE-2026-15661

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III. Intelligence Information for CVE-2026-15661

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Same Patch Batch · IBM · 2026-10-19 · 38 CVEs total

CVE-2026-107400 8.8 HIGH Security Vulnerability identified in IBM TRIRIGA - GWT Mock Authentication
CVE-2026-109126 8.8 HIGH IBM Verify Identity Access and IBM Security Verify Access Hard-coded Credentials
CVE-2026-10572 8.8 HIGH IBM MQ Buffer Overflow
CVE-2026-10574 8.8 HIGH IBM MQ Buffer Overflow
CVE-2026-10743 8.8 HIGH IBM MQ Race Condition
CVE-2026-105453 8.4 HIGH IBM Sterling Connect:Direct for Unix Improper Privilege Management
CVE-2026-107366 8.3 HIGH Langflow OSS Authorization Bypass Through User-Controlled Key
CVE-2026-12665 8.1 HIGH IBM MQ Buffer Overflow
CVE-2026-6719 7.5 HIGH IBM Concert Software Use of Insufficiently Random Values
CVE-2026-12148 7.5 HIGH IBM MQ Deserialization of Untrusted Data
CVE-2026-3295 7.4 HIGH IBM Cloud Pak System Cross-Site Scripting
CVE-2026-19178 6.8 MEDIUM TS4500 Tape Library Race Condition
CVE-2026-12155 6.5 MEDIUM IBM MQ Deserialization of Untrusted Data
CVE-2026-12343 6.5 MEDIUM IBM MQ Denial of Service
CVE-2026-11829 6.5 MEDIUM IBM MQ Buffer Overflow
CVE-2026-12350 6.5 MEDIUM IBM MQ Deserialization of Untrusted Data
CVE-2026-14511 6.5 MEDIUM IBM MQ Denial of Service
CVE-2025-36061 6.5 MEDIUM TS4500 Tape Library Denial of Service
CVE-2025-36252 6.3 MEDIUM TS4500 Tape Library Insufficient Session Expiration
CVE-2026-4413 6.1 MEDIUM IBM Concert Software Cross-Site Scripting

Showing top 20 of 38 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Concert
Same vendor: IBM
Same weakness: CWE-117

V. Comments for CVE-2026-15661

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