What’s Vulnerable › Vulnerabilities

CVE-2024-41659: GHSL-2024-034: memos CORS Misconfiguration in server.go

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-08-20 · updated 2026-06-17
• Weakness: CWE-942

Description

memos is a privacy-first, lightweight note-taking service. A CORS misconfiguration exists in memos 0.20.1 and earlier where an arbitrary origin is reflected with Access-Control-Allow-Credentials set to true. This may allow an attacking website to make a cross-origin request, allowing the attacker to read private information or make privileged changes to the system as the vulnerable user account. This vulnerability is fixed in 0.21.0.

Affected products

• usememos/memos: before 0.21.0 — fixed in 0.21.0

How to fix

Upgrade to a fixed version: usememos/memos 0.21.0. Check the vendor advisory for mitigations.

References

• https://github.com/usememos/memos/blob/v0.20.1/server/server.go#L163
• https://github.com/usememos/memos/commit/8101a5e0b162044c16385bee4f12a4a653d050b9
• https://securitylab.github.com/advisories/GHSL-2024-034_memos/

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