CVE-2026-124579 aaPanel BillionMail Relay Configuration API relay.go injection
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124579?
CVE-2026-124579 is a medium-severity vulnerability in aaPanel BillionMail, published on 9 Nov 2026.
Official description
A vulnerability was determined in aaPanel BillionMail up to 4.9. Affected by this issue is some unknown functionality of the file core/api/relay/v1/relay.go of the component Relay Configuration API. Executing a manipulation of the argument helo_name can lead to injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-124579?
How do I fix CVE-2026-124579?
No fix has been published for CVE-2026-124579 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124579 being exploited?
There is no known exploitation of CVE-2026-124579 in the wild and no public exploit code.
Sources
Also known as GHSA-crmj-h347-23x8.