CVE-2026-8640
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IBM Security Verify Directory CSRF Vulnerability
Vulnerability report for CVE-2026-8640, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-08
Last updated on: 2026-11-08
Assigner: IBM Corporation
Description
Description
IBM Security Verify Directory 10.0.0 through 10.0.4 and IBM Verify Directory 11.0.0 does not set the SameSite attribute on session cookies, making it vulnerable to Cross-Site Request Forgery (CSRF) attacks. An attacker can cause authenticated users' browsers to send unauthorized requests to the application.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| IBM | Security Verify Directory | From 10.0.0 (inc) to 10.0.4 (inc) |
| IBM | Verify Directory | 11.0.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-352 | The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. |
