Low
Dozzle: SSRF guard bypass via IPv6 transition addresses (6to4/NAT64/Teredo) in webhook notification dispatcher
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-73087
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 19:12 UTC · Revision 1
Source evidence
Dozzle: SSRF guard bypass via IPv6 transition addresses (6to4/NAT64/Teredo) in webhook notification dispatcher
core-osv · Original sourcePublished 11 Aug 2026, 16:52 UTC
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.
osv:CVE-2026-73087
Complete source record
{
"id": "16ef24643711535bc86609b5924a058332ce294b52fe4966847a7c3dfce69c7c",
"url": "https://osv.dev/vulnerability/CVE-2026-73087",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Dozzle: SSRF guard bypass via IPv6 transition addresses (6to4/NAT64/Teredo) in webhook notification dispatcher",
"summary": "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.",
"evidence": "osv:CVE-2026-73087",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2026-73087",
"aliases": [
"CVE-2026-73087",
"GHSA-p2w3-6x73-2f6x",
"GO-2026-6440"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/amir20/dozzle",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "6f28474d462ace96f2f3636a0b25f44feb0d9d6d"
},
{
"fixed": "8cf7ccd5ee041ecaea92b49951793d4d2393761f"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "10.6.15"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "8cf7ccd5ee041ecaea92b49951793d4d2393761f"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "6f28474d462ace96f2f3636a0b25f44feb0d9d6d"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v10.6.15"
}
]
}
}
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"database_specific": {
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}
}
],
"modified": "2026-10-28T02:30:31.467588517Z",
"provider": "osv",
"references": [
"https://github.com/amir20/dozzle/releases/tag/v10.6.15",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73087.json",
"https://github.com/amir20/dozzle/security/advisories/GHSA-p2w3-6x73-2f6x",
"https://nvd.nist.gov/vuln/detail/CVE-2026-73087",
"https://github.com/amir20/dozzle/commit/8cf7ccd5ee041ecaea92b49951793d4d2393761f",
"https://github.com/amir20/dozzle/pull/4887"
],
"provider_metadata": {
"cwe_ids": [
"CWE-918"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73087.json"
}
},
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{
"value": "CVE-2026-73087",
"evidence": "/id"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 498638,
"published_at": "2026-08-11T16:52:13.728+00:00"
}