CVE-2026-121565
HIGHCVSS 7.4/10
Last modified
CVE-2026-121565 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. Tanium addressed an improper certificate validation vulnerability in multiple products. Products have been updated to distrust several intermediate CA certificates associated with compromised private keys..
Description
Tanium addressed an improper certificate validation vulnerability in multiple products. Products have been updated to distrust several intermediate CA certificates associated with compromised private keys.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Tanium | TanOS | >= 1.8.5, < 1.8.5.0326; >= 1.8.6, < 1.8.6.0193; >= 1.9.0, < 1.9.0.0089 |
| Tanium | Asset | >= 1.33, < 1.33.334; >= 1.36, < 1.36.182; >= 1.39, < 1.39.164 |
| Tanium | Comply | >= 2.32, < 2.32.275; >= 2.35, < 2.35.337; >= 2.37, < 2.37.347 |
| Tanium | Connect | >= 5.29, < 5.29.272; >= 5.37, < 5.37.177; >= 5.47, < 5.47.135 |
| Tanium | Integrity Monitor | >= 3.6, < 3.6.608; >= 3.7, < 3.7.383; >= 3.8, < 3.8.362 |
| Tanium | Health Check | >= 1.13, < 1.13.653 |
| Tanium | Endpoint Configuration Toolset Solution | >= 1.51, < 1.51.61; >= 1.59, < 1.59.51; >= 1.71, < 1.71.26 |
| Tanium | Patch | >= 3.24, < 3.24.328; >= 3.28, < 3.28.346; >= 3.32, < 3.32.383 |
| Tanium | Performance | >= 1.25, < 1.25.196 |
| Tanium | Reputation | >= 6.6, < 6.6.150; >= 6.7, < 6.7.143; >= 6.8, < 6.8.167 |
| Tanium | Reveal | >= 2.4, < 2.4.109; >= 2.5, < 2.5.166 |
| Tanium | Threat Response | >= 4.9, < 4.9.480; >= 4.12, < 4.12.353; >= 4.17, < 4.17.333 |
| Tanium | Provision Host | >= 10.4.100, < 10.4.100; >= 10.8.115, < 10.8.115; >= 10.9.113, < 10.9.113; >= 10.10.189, < 10.10.189; >= 10.11.127, < 10.11.127 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-121565?
Tanium addressed an improper certificate validation vulnerability in multiple products. Products have been updated to distrust several intermediate CA certificates associated with compromised private keys.
How severe is CVE-2026-121565?
CVE-2026-121565 has a CVSS score of 7.4/10 (HIGH severity).
How do I fix CVE-2026-121565?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-121558AuditPilot before commit 4669c93 contains an authorization b…4.3
- CVE-2026-121559GLPI 10.0.0 before 10.0.28 and 11.0.0 before 11.0.10 contain…7.2
- CVE-2026-121560LogChimp 0.9.0-alpha.1 before 0.9.3 contains an authorizatio…7.1
- CVE-2026-121561Label Studio before 1.23.2 (label-studio-sdk before 2.1.2) c…7.7
- CVE-2026-121562CTFd 3.1.0 before 3.8.7 contains an information disclosure v…5.3
- CVE-2026-121564Incomplete Comparison with Missing Factors (CWE-1023) in mer…1.8
- CVE-2026-12157The BetterDocs - Knowledge Base Docs & FAQ Solution for Elem…6.4
- CVE-2026-121577Inefficient Regular Expression Complexity (CWE-1333) in gene…6.7
- CVE-2026-121578Tactical RMM contains a stored XSS vulnerability caused by i…6.1
- CVE-2026-12158The RegistrationMagic – User Registration Forms Plugin plugi…8.8
- CVE-2026-121580Server-side request forgery in the Jira ticketing filter loo…
- CVE-2026-121581A vulnerability has been found in ArcReel 0.32.0/0.33.0/0.34…4.3
Are you affected by CVE-2026-121565?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST