CVE-2026-105689
Severity not reportedPenpot is an open-source design and prototyping platform.
Penpot is an open-source design and prototyping platform. Prior to 2.18.0, app.util.ssrf/blocked-address? relies on Java InetAddress predicates that do not classify NAT64, 6to4, or Teredo addresses and applies additional CIDR checks only to IPv4 values. Exploitation requires routing through a NAT64 gateway or an attacker-controlled DNS AAAA record; cloud environments with NAT64 gateways are directly exploitable. A user controlling a media import URL, or an administrator controlling a webhook URL, can then supply an IPv6 transition address that embeds a cloud-metadata, loopback, link-local, or private IPv4 target and bypasses the intended SSRF restrictions. Media import can disclose response bodies, while webhook delivery can expose response status as a network-probing side channel. This issue is fixed in version 2.18.0.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/penpot/penpot/commit/326d83e780ae120b45ccd6f3d7bd24922b54461c security-advisories@github.com
- https://github.com/penpot/penpot/releases/tag/2.18.0 security-advisories@github.com
- https://github.com/penpot/penpot/security/advisories/GHSA-wxgm-8qjw-x445 security-advisories@github.com
- https://github.com/penpot/penpot/security/advisories/GHSA-wxgm-8qjw-x445 134c704f-9b21-4f2e-91b3-4a467353bcc0