CVSS 4.0
2.1 lowCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:PCVE-2026-124579
Low (2.1) in aapanel billionmail. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.
On this page
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.
Severity
CVSS 3.1
7.4 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L- EPSS
- 0.2% estimated probability of exploitation activity in the next 30 days; 14th percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
- CWEs
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)
CWE-707 Improper Neutralization - OWASP Top 10
- A05:2025 Injection
- Published
- Modified
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
Ask an AI about this CVE
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Explain CVE-2026-124579 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-124579?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-124579?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-124579 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| aaPanel BillionMail | 4.0 |
| aaPanel BillionMail | 4.1 |
| aaPanel BillionMail | 4.2 |
| aaPanel BillionMail | 4.3 |
| aaPanel BillionMail | 4.4 |
| aaPanel BillionMail | 4.5 |
| aaPanel BillionMail | 4.6 |
| aaPanel BillionMail | 4.7 |
| aaPanel BillionMail | 4.8 |
| aaPanel BillionMail | 4.9 |
Attack patterns (CAPEC)
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-707 (16), CWE-74 (37).