CVE-2022-4802 — Authorization Bypass Through User-Controlled Key in GitHub repository usememos/m

Authorization Bypass Through User-Controlled Key in GitHub repository usememos/memos prior to 0.9.1.

01What is this vulnerability?

Authorization Bypass Through User-Controlled Key in GitHub repository usememos/memos prior to 0.9.1.

02Affected products

Vendor	Product	Versions
usememos	usememos/memos	unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-12-28T00:00:00.000Z
• Last modified: 2025-04-10T17:57:48.389Z

09References

• github.com — https://github.com/usememos/memos/commit/3556ae4e651d9443dc3bb8a170dd3cc726517a5…
• huntr.dev — https://huntr.dev/bounties/d47d4a94-92e3-4400-b012-a8577cbd7956