Vendor PAM: Improper Certificate Validation
CVE-2026-45170 is a high-severity improper certificate validation vulnerability in Vendor PAM from CyberArk Software, a Palo Alto Networks Company, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. The record lists version 1.1.100504 as the first without the flaw, so updating Vendor PAM to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.1% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Vendor PAM to 1.1.100504 or a later version.
- Update Idira Privilege Cloud Connector to 1.1.100504 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| CyberArk Software, a Palo Alto Networks Company | Vendor PAM | 1.1.0 up to, but not including, 1.1.100504 | 1.1.100504 |
| Palo Alto Networks | Idira Privilege Cloud Connector | 1.1.0 up to, but not including, 1.1.100504 | 1.1.100504 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.5 | High | CNA (paloaltonetworks.com) |
| CVSS 3.1 | 8.8 | High | NVD |
Official description
Idira Vendor PAM - Self-Hosted Connector versions prior 1.1.100504 under specific conditions and configuration scenarios, TLS certificate validation may not be fully enforced. CyberArk Security Bulletin: CA26-17
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.
How developers prevent this class of flaw
- Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
- If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.
More Improper Certificate Validation vulnerabilities (CWE-295)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
- docs.cyberark.com/Product
Recent Improper Certificate Validation vulnerabilities
- 7.8 High severity
- 7.4 High severity
- 7.4 High severity
- 8.0 High severity
- 7.8 High severity
- 8.7 High severity
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