usememos Memos up to 0.30.0 Webhook Validation validate.go server-side request forgery

Summaryinfo

A vulnerability was found in usememos Memos up to 0.30.0. It has been declared as critical. The impacted element is an unknown function of the file internal/webhook/validate.go of the component Webhook Validation. Such manipulation leads to server-side request forgery. This vulnerability is uniquely identified as CVE-2026-51583. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in usememos Memos up to 0.30.0. It has been rated as critical. Affected by this issue is some unknown processing of the file internal/webhook/validate.go of the component Webhook Validation. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-51583 since 06/08/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/11/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• usememos

Name

• Memos

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30.0

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

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• 🔒
• 🔒

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Entryinfo

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