CVE-2026-21991
dtrace: A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
CVE-2026-21991 is fixed in 3 products on 1 platform, first by ELSA-2026-50153, released March 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0019
8th percentile
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dtrace · Debian 14 | 2.0.6-1 | DEBIAN-CVE-2026-21991 | Mar 16, 2026 |
| dtrace · ol 10 | 0:2.0.6-1.el9 | ELSA-2026-50153 | Mar 13, 2026 |
| dtrace · ol 8 | 0:2.0.6-1.el9 | ELSA-2026-50152 | Mar 13, 2026 |
| dtrace · ol 9 | 0:2.0.6-1.el9 | ELSA-2026-50153 | Mar 13, 2026 |
| dtrace-devel · ol 10 | 0:2.0.6-1.el9 | ELSA-2026-50153 | Mar 13, 2026 |
| dtrace-devel · ol 8 | 0:2.0.6-1.el9 | ELSA-2026-50152 | Mar 13, 2026 |
| dtrace-devel · ol 9 | 0:2.0.6-1.el9 | ELSA-2026-50153 | Mar 13, 2026 |
| dtrace-testsuite · ol 10 | 0:2.0.6-1.el9 | ELSA-2026-50153 | Mar 13, 2026 |
| dtrace-testsuite · ol 8 | 0:2.0.6-1.el9 | ELSA-2026-50152 | Mar 13, 2026 |
| dtrace-testsuite · ol 9 | 0:2.0.6-1.el9 | ELSA-2026-50153 | Mar 13, 2026 |
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