CVE-2026-43870

mediumcovered by 1 sourcefirst seen 2026-08-12

An attacker can exploit multiple vulnerabilities in IBM App Connect Enterprise to conduct a denial of service attack and cause unspecified impacts.

CSIRTS triage

What: Multiple vulnerabilities in IBM App Connect Enterprise (Apache Thrift) enable denial-of-service attacks and unspecified impacts.
Who is affected: Systems running IBM App Connect Enterprise with Apache Thrift components.
Urgency: Medium; denial-of-service impact is confirmed, with additional unspecified impacts requiring investigation.
Action: Update IBM App Connect Enterprise to patched versions addressing CVE-2026-41636 and CVE-2026-43870.

AI-assisted analysis generated from the source advisory — verify against the original.

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Low exploitation risk0.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.

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