CVE-2026-84203
Last modified
CVE-2026-84203 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Memos versions 0.26.0 through 0.30.0 fail to revoke refresh tokens when a user changes their password, allowing attackers to maintain account access. An attacker with a stolen refresh token can call the RefreshToken RPC to obtain new access tokens and rotate the refresh token indefinitely, bypassing the password change security measure.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
Memos versions 0.26.0 through 0.30.0 fail to revoke refresh tokens when a user changes their password, allowing attackers to maintain account access. An attacker with a stolen refresh token can call the RefreshToken RPC to obtain new access tokens and rotate the refresh token indefinitely, bypassing the password change security measure.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| usememos | memos | >= 0.26.0, <= 0.30.0 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-84203?
How severe is CVE-2026-84203?
How do I fix CVE-2026-84203?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-84198IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allo…9.8
- CVE-2026-84199Kyverno before 1.16.2 contains a server-side request forgery…7.7
- CVE-2026-8420The BLOGCHAT Chat System plugin for WordPress is vulnerable …6.1
- CVE-2026-84200Kyverno versions v1.9.0 through v1.12.7 contain a policy exc…9
- CVE-2026-84201appium-mcp-server through 0.1.61 fails to validate or normal…7.1
- CVE-2026-84202ModelScope uses PyYAML's unsafe yaml.Loader to parse model c…8.8
- CVE-2026-84204GROWI contains an access control vulnerability in the GET /_…6.5
- CVE-2026-84205GROWI contains an access control vulnerability in the GET /_…6.5
- CVE-2026-84206Snipe-IT before 8.7.0 gates the bulk asset restore endpoint …4.3
- CVE-2026-84207Heym before 0.0.98 fails to apply SSRF egress guards to WebS…5.4
- CVE-2026-84208AVideo through version 29.0 contains an unauthenticated SQL …7.5
- CVE-2026-84209IBM Guardium Data Protection 12.2.2, and 12.1 could allow a …9.8
Are you affected by CVE-2026-84203?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST