by Kastro
Paper/Archive/CVE-2026-18535

CVE-2026-18535

IBM API Connect — IBM API Connect Denial of Service

EPSS 0.3%CVSS 9.6
critical.is priorityof 100
33
CVSS 9.6 (CNA)9.6 / 10 × 3028.8Not in CISA KEV+300.0EPSS percentile 21.3.213 × 204.3No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 are vulnerable to a Regular Expression Denial of Service (ReDoS) attack and to improper neutralisation of wildcard query operators.

Affected

ProductAffectedFixed inSource
API Connect12.1.0.0 – 12.1.1.2–CNA
API Connect10.0.8.0 – 10.0.8.12–CNA

Scores by source

ibm (CNA)9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H

References

patchibm.com/support/pages/node/7291753patchibm.com/support/pages/node/7292434