CVE-2026-51583

HIGH

8.5

CVSS Score

Published: August 11, 2026 at 12:00 AM UTC

Updated: October 24, 2026 at 04:10 PM UTC

1 product affected across 1 vendorMemos

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Severity

HIGH8.5

Exploit prediction

EPSS 0.4%

SSVC

PoC

Description

An issue in usememos through v0.30.0 allows a remote authenticated attacker to perform Server-Side Request Forgery (SSRF) via the Webhook validation mechanism in internal/webhook/validate.go, by setting a webhook target to an internal address.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Memos · Usememosgo

60%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord

https://github.com/usememos/memos

Source: cverecord

https://gist.github.com/seiyaibuki0523/d8af15eb555808319a2633269a9ebb80

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: CHANGED
Confidentiality: HIGH
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-918

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