What is CVE-2026-15915?

CVE-2026-15915 is a medium-severity vulnerability in IBM Concert, classified under Files or Directories Accessible to External Parties. CVSS score: 6.2/10. Published 2026-09-22.

How severe is CVE-2026-15915?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Vulnerability in IBM Concert

CVE-2026-15915

IBM Concert 1.0.0 through 3.0.0 could allow a local attacker to obtain sensitive information due to recursive copying of build context directories into container images.

Published 2026-09-22 · last modified 2026-11-03.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (5.6th percentile), scored 2026-11-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

IBM Concert

Weakness classification (CWE)

CWE-552 — Files or Directories Accessible to External Parties

References

www.ibm.com/support/pages/node/7288830 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-15915?: CVE-2026-15915 is a medium-severity vulnerability in IBM Concert, classified under Files or Directories Accessible to External Parties. CVSS score: 6.2/10. Published 2026-09-22.
How severe is CVE-2026-15915?: Medium severity. CVSS v3 base score is 6.2 out of 10.