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Vulnerability record · CVE-2026-1568 · published 3 February 2026

CVE-2026-1568: Improper authentication vulnerability

Rapid7 InsightVM versions before 8.34.0 contain a signature verification issue on the Assertion Consumer Service (ACS) cloud endpoint that could allow an attacker to gain unauthorized access to InsightVM accounts setup via "Security Console" installations, resulting in full account takeover. The issue occurs due to the application processing these unsigned assertions and issuing session cookies that granted access to the targeted user accounts. This has been fixed in version 8.34.0 of InsightVM.

9.6 CVSS 3.1 Critical EPSS 0.15% · top 96.7% CWE-287 · Improper authenticationCWE-347 · Improper verification of cryptographic signature Deferred
9.6CVSS 3.1 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Rapid7 InsightVM versions before 8.34.0 contain a signature verification issue on the Assertion Consumer Service (ACS) cloud endpoint that could allow an attacker to gain unauthorized access to InsightVM accounts setup via "Security Console" installations, resulting in full account takeover. The issue occurs due to the application processing these unsigned assertions and issuing session cookies that granted access to the targeted user accounts. This has been fixed in version 8.34.0 of InsightVM.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

References

LinkTags
https://docs.rapid7.com/insight/command-platform-release-notes/

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Source: NIST National Vulnerability Database (record CVE-2026-1568), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.