CVE-2026-84697
mediumpriority · track · 21EPSS 0.004 · 33 %ileDEEPSS · scored 2026-10-24
Mailpit's IsInternalIP deny list function fails to block the Azure WireServer address 168.63.129.16 and the RFC 2765/6145 IPv4-translated IPv6 prefix, allowing server-side request forgery to internal destinations. Attackers can supply hostnames resolving to these addresses in message content to reach the link check API and proxy endpoint for accessing internal resources.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–6.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3138MailPit: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2026-09-01csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in MailPit ausnutzen, um Informationen offenzulegen.
sources
Which sources assert this record, and when.
references (4) nvd
External citations — patches, advisories, analysis.
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