TIBCO ActiveMatrix BusinessWorks Fails To Properly Enforce Authentication

published 2019-04-09 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-18377

cvss: 9.1; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.9%; EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits: 0; none known

The HTTP Connector component of TIBCO Software Inc.'s TIBCO ActiveMatrix BusinessWorks contains a vulnerability that theoretically allows unauthenticated HTTP requests to be processed by the BusinessWorks engine even when authentication is required. This possibility is restricted to circumstances where HTTP "Basic Authentication" policy is used in conjunction with an XML Authentication resource. The BusinessWorks engine might instead use credentials from a prior HTTP request for authorization purposes. Affected releases are TIBCO Software Inc. TIBCO ActiveMatrix BusinessWorks: versions up to and including 6.4.2.

Exploit prediction

2.89% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	9.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

TIBCO Software Inc. TIBCO ActiveMatrix BusinessWorks

Classification

Weakness

CWE-287 Improper Authentication

References

tibco.com /services/support/advisories
vendor-advisory
tibco.com /support/advisories/2019/04/tibco-security-advisory-april-9-2019-tibco-activematrix-businessworks
vendor-advisory
securityfocus.com /bid/107840
vdb-entry, broken-link, third-party-advisory

Sources

CVE List CVE-2019-8990
NVD CVE-2019-8990

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Summary