CVE-2026-82476Network attack vectorHinoki check available

Internal metadata disclosure via omitted CGNAT range

Published Aug 29, 2026 · Updated Aug 29, 2026

SSRF in Memos 0.30.0 and earlier allows remote attackers to read internal page metadata through unauthenticated link fetching. GetLinkMetadata and BatchGetLinkMetadata rely on net.IP.IsPrivate, which does not classify 100.64.0.0/10 as internal before fetching and returning titles and descriptions. Exposure requires network access to those RPCs and routing from the server to a target in shared address space, including reachable metadata services.

CVSS severityUnavailable
Unscored
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

SSRF in Memos 0.30.0 and earlier allows remote attackers to read internal page metadata through unauthenticated link fetching. GetLinkMetadata and BatchGetLinkMetadata rely on net.IP.IsPrivate, which does not classify 100.64.0.0/10 as internal before fetching and returning titles and descriptions. Exposure requires network access to those RPCs and routing from the server to a target in shared address space, including reachable metadata services.

The record

CVE
CVE-2026-82476
Published
Aug 29, 2026
Updated
Aug 29, 2026
Vendor
Memos
Product
Memos
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.30.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Memos · Memosversion=0 <=0.30.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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