CVE-2026-33920 Cross-site request forgery in the Guardian/CMC login before 26.3.0
Attackers can trick victims into authenticating with attacker credentials, compromising audit trails and attributing victim actions to the attacker.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-33920?
CVE-2026-33920 is a medium-severity vulnerability in Nozomi Networks CMC, published on 8 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A cross-site request forgery vulnerability was discovered in the login functionality (both standard and SAML) due to missing validation of the anti-CSRF token. An attacker with a valid account can trick a victim into unknowingly authenticating with the attacker's credentials. Any operation performed by the victim in this state is attributed to the attacker's account, compromising the integrity of the audit trail.
Weakness: CWE-352
Which versions are affected by CVE-2026-33920?
How do I fix CVE-2026-33920?
No fix has been published for CVE-2026-33920 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-33920 being exploited?
There is no known exploitation of CVE-2026-33920 in the wild and no public exploit code.
Sources
Also known as GHSA-ccg2-64fc-r6w8.