What is CVE-2026-17268?

CVE-2026-17268 is a medium-severity vulnerability in Ibm I, classified under Authentication Bypass by Capture-replay. CVSS score: 6.8/10. Published 2026-08-12.

How severe is CVE-2026-17268?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Ibm I

CVE-2026-17268

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due to improper validation of a session token.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Ibm I — versions 7.6, 7.5, 7.4

Weakness classification (CWE)

CWE-294 — Authentication Bypass by Capture-replay

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-17268?: CVE-2026-17268 is a medium-severity vulnerability in Ibm I, classified under Authentication Bypass by Capture-replay. CVSS score: 6.8/10. Published 2026-08-12.
How severe is CVE-2026-17268?: Medium severity. CVSS v3 base score is 6.8 out of 10.