Vulnerability · Published Mar 16, 2026 · Assigned by oracle
CVE-2026-21991
Medium 5.5
In plain English
A medium-severity path traversal in Oracle Linux from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 91.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | dtrace | 2.0.6-1 | DEBIAN-CVE-2026-21991 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | Oracle Linux | 8910 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- Oracle Advisory vendor-advisory