[UPDATE] [medium] IBM App Connect Enterprise (Apache Thrift): Multiple Vulnerabilities

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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EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-416360.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-438700.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-41636	coverage & exploitation status	NVD · CVE.org
CVE-2026-43870	coverage & exploitation status	NVD · CVE.org