Medium severity5.3NVD Advisory· Published Sep 2, 2026

CVE-2026-84697

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Axllent/Mailpitllm-fuzzy

Patches

Vulnerability mechanics

References

github.com/axllent/mailpit/blob/v1.31.0/internal/tools/net.gonvd
github.com/axllent/mailpit/commit/a02821bf3424da9196e156c422370f4868a1dff2nvd
www.vulncheck.com/advisories/mailpit-ssrf-deny-list-bypass-via-azure-metadata-and-ipv6-prefixnvd

News mentions

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cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000