Skip to content
OpenAdvisories
Low · 2.3 CVE-2026-73087 EUVD-2026-56556GHSA-p2w3-6x73-2f6xGO-2026-6440

Dozzle: SSRF guard bypass via IPv6 transition addresses (6to4/NAT64/Teredo) in webhook notification dispatcher

Published Aug 11, 2026 · Updated Aug 11, 2026 · Assigned by GitHub_M

Description

Dozzle is a realtime log viewer for docker containers. From 10.5.2 until 10.6.15, the isBlockedIP SSRF guard in internal/notification/dispatcher/webhook.go, used by safeDialContext for webhook notification URLs, does not inspect IPv4 addresses embedded in 6to4, NAT64, Teredo, or IPv4-compatible IPv6 addresses, allowing an authenticated user to reach loopback or link-local targets that the guard intends to block. This issue is fixed in version 10.6.15.

Affected products

VendorProductAffectedFixed
amir20 dozzle < 10.6.15 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
SLES for SAP 16.0 govulncheck-vulndb 0.0.20260916T180043-160000.1.1 SUSE-SU-2026:23863-1, SUSE-SU-2026:23855-1
SLES 16.0 govulncheck-vulndb 0.0.20260916T180043-160000.1.1 SUSE-SU-2026:23863-1, SUSE-SU-2026:23855-1
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260916T180043-160000.1.1 openSUSE-SU-2026:21897-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/amir20/dozzle < 1.29.1-0.20260804193351-8cf7ccd5ee04 1.29.1-0.20260804193351-8cf7ccd5ee04 GHSA-p2w3-6x73-2f6x

Advisories 3

References