CVE-2026-100710 Froxlor before 2.3.12 DKIM Private Key Disclosure via API
Authenticated users with specific permissions can read DKIM private keys via API, enabling email spoofing and DMARC bypass.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100710?
CVE-2026-100710 is a medium-severity vulnerability in froxlor, published on 26 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Froxlor through 2.3.10 does not filter sensitive columns from API responses: Domains::get(), Domains::listing(), SubDomains::get(), and the admin branch of SubDomains::listing() perform a wildcard SELECT over the panel_domains table and return the row unmodified, including the panel_domains.dkim_privkey field. An authenticated, non-superadmin admin holding the delegated customers_see_all flag can therefore read the DKIM private signing keys of domains belonging to other tenants via Domains.get, Domains.listing, SubDomains.get, or SubDomains.listing, with a single listing call disclosing the key of every visible domain. The disclosed keys allow an attacker to sign email that passes DKIM verification and DMARC alignment for the affected domains. This is a follow-on to an incomplete fix that stripped password and data_2fa but not dkim_privkey. The issue is fixed in 2.3.12.
Weakness: CWE-200
Which versions are affected by CVE-2026-100710?
How do I fix CVE-2026-100710?
No fix has been published for CVE-2026-100710 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-100710 being exploited?
There is no known exploitation of CVE-2026-100710 in the wild and no public exploit code.
Sources
Also known as GHSA-6v5g-8vmm-8pqh, GHSA-79gx-h528-j9xf.