Is there a public exploit for CVE-2026-8640?

No public exploit for CVE-2026-8640 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-8640?

CVE-2026-8640 scores CVSS 3.5 (v3.1), rated low.

What does CVE-2026-8640 affect?

CVE-2026-8640 affects IBM Security Verify Directory, Verify Directory.

3.5 Low

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,…

CVE-2026-8640

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.

Assessment

CVSS: 3.5 (v3.1)
Severity: Low
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 8 November 2026
Last updated: 9 November 2026
Affected: IBM · Security Verify Directory · Verify Directory
Assigner: ibm

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

At the source

EUVD (ENISA)

References

https://www.ibm.com/support/pages/node/7293828

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