CVE-2026-21939

Vulnerability in the SQLcl component of Oracle Database Server

High · published January 20, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
8.8
In the wild
Unconfirmed
What it is

⚡ An unauthenticated attacker could exploit SQLcl if a user unwittingly interacts with the trap laid out in the environment! Think of it like a sneaky con artist who needs an unsuspecting accomplice to hand over the house keys — the attacker can't get in without help. In this case, they rely on a user to do something that opens the door to SQLcl's power. If successful, an attacker could take full control of SQLcl, manipulating data and operations as they please — like a thief hijacking the entire command center! This could lead to severe consequences, compromising confidentiality, integrity, and availability of your database systems. We definitely don’t want to leave the keys lying around!

Put simply

Think of it like a sneaky con artist who needs an unsuspecting accomplice to hand over the house keys — the attacker can't get in without help. In this case, they rely on a user to do something that opens the door to SQLcl's power. This vulnerability allows an unauthenticated attacker to compromise SQLcl by exploiting the infrastructure it runs on, but requires a user to interact with the exploit, making it a bit tricky to execute.

What to do

If successful, an attacker could take full control of SQLcl, manipulating data and operations as they please — like a thief hijacking the entire command center! This could lead to severe consequences, compromising confidentiality, integrity, and availability of your database systems. We definitely don’t want to leave the keys lying around! To protect your systems, upgrade SQLcl from versions 23.4.0-23.26.0 to the latest secure version. Additionally, educate users about the risks of interacting with suspicious commands to minimize potential exploits. Staying aware is key! You've got this! With these steps, you'll keep SQLcl locked down tight! 🛡️

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00196 · 8.8th percentile
Published
2026-01-20T21:56Z
EPSS history
Timeline
  • 20 JAN 21:56Z
    Vulnerability in the SQLcl component of Oracle Database Server
    cvelistv5