CVE-2026-21997 Missing authorization in Oracle Life Sciences Empirica Signal
Low-privileged attackers can modify or read critical data in Oracle Life Sciences Empirica Signal via HTTP due to missing authorization checks.
- 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-2026-21997?
CVE-2026-21997 is a high-severity missing authorization vulnerability in Oracle Life Sciences Empirica Signal, published on 21 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Vulnerability in the Oracle Life Sciences Empirica Signal product of Oracle Life Science Applications (component: Common Core). Supported versions that are affected are 9.2.1-9.2.3. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Life Sciences Empirica Signal. While the vulnerability is in Oracle Life Sciences Empirica Signal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Life Sciences Empirica Signal accessible data as well as unauthorized read access to a subset of Oracle Life Sciences Empirica Signal accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N).
Weakness: CWE-284
Which versions are affected by CVE-2026-21997?
It affects 1 product.
Products include Oracle Life Sciences Empirica Signal.
How do I fix CVE-2026-21997?
No fix has been published for CVE-2026-21997 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-21997 being exploited?
There is no known exploitation of CVE-2026-21997 in the wild and no public exploit code.
Sources
Also known as GHSA-fjgq-vg76-2mmp.