CVE-2026-1568 Rapid7 InsightVM Signature Validation Vulnerability
Attackers can bypass signature validation on the ACS endpoint to gain unauthorized access and take over InsightVM accounts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1568?
CVE-2026-1568 is a critical authentication bypass vulnerability in Rapid7 Vulnerability Management, published on 3 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-1568?
How do I fix CVE-2026-1568?
No fix has been published for CVE-2026-1568 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-1568 being exploited?
There is no known exploitation of CVE-2026-1568 in the wild and no public exploit code.
Sources
Also known as GHSA-grpw-3qxf-rr2p.