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VulnerabilityPublished

CVE-2026-6327: IBM Concert · Log Injection

Affects IBM ConcertSource CVE Database V5

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Not known to be exploited · CVSS 4.3 Medium.

Data as of 6 Nov 2026, 23:24 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
IBMConcertAffected
  • >=1.0.0 <=3.0.0
Fixed in–

CPE configurations (2)

  • cpe:2.3:a:ibm:concert:1.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:concert:3.0.0:*:*:*:*:*:*:*

AI-suggested

Until a fix is available, monitor for unusual log entries and restrict unauthorized access to the system to reduce risk.

Description

IBM Concert 1.0.0 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.

References

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