---
id: "CVE-2026-8640"
page: "https://infrastack.ai/live/CVE-2026-8640"
kind: "vulnerability"
aliases: ["CVE-2026-8640"]
title: "IBM Verify Directory: missing SameSite cookie flag enables cross-site request forgery"
severity: "low"
cvss: 3.5
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["ibm", "identity", "vendor", "verify-directory"]
not_affected_if: ["unknown"]
published_at: "2026-11-08T19:17:42+00:00"
first_seen_at: "2026-11-08T19:22:34+00:00"
updated_at: "2026-11-08T19:23:30+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8640", "first_seen_at": "2026-11-08T19:22:34+00:00"}]
exploit_sources: []
---

# IBM Verify Directory: missing SameSite cookie flag enables cross-site request forgery

Link for people: https://infrastack.ai/live/CVE-2026-8640 (this .md is for agents)

IBM Security Verify Directory 10.0.0 through 10.0.4 and IBM Verify Directory 11.0.0 do not set the SameSite attribute on session cookies. An attacker can make a logged-in user's browser send unauthorized requests to the application.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-08T19:22:34+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-8640

## From the sources

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.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_