CVE-2026-82476

Memos through 0.30.0 omits the 100.64.0.0/10 carrier-grade NAT address range from SSRF protection in its link-metadata fetcher, allowing unauthenticated attackers to bypass IP validation. Attackers can make the server request internal hosts in that range including cloud metadata services and read page titles and descriptions back.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/usememos/memos
https://github.com/usememos/memos/blob/v0.30.0/internal/httpgetter/html_meta.go
https://github.com/usememos/memos/issues/6099
https://www.vulncheck.com/advisories/memos-through-0.30.0-ssrf-via-omitted-cgnat-address-range
https://github.com/usememos/memos/issues/6099

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-29 17:18

Updated : 2026-09-10 15:53

NVD link : CVE-2026-82476

Mitre link : CVE-2026-82476

CVE.ORG link : CVE-2026-82476

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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