How many CVEs have a located fix in better-auth/better-auth?

13 published CVEs have a fix traced to functions in better-auth/better-auth, touching 26 functions across 27 files.

Which function in better-auth/better-auth has been patched by the most CVEs?

hasOrgAdminRole in packages/sso/src/routes/providers.ts has been changed by 1 CVE fixes, from 2026 to 2026.

How large is a typical CVE fix in better-auth/better-auth?

The median fix changes 86 lines. 31% of fixes change 20 lines or fewer, and 31% change a single function.

How is a fix located to a function?

The upstream fix commit for each CVE is fetched and its diff is split into hunks. Each hunk is attributed to the function, method or type it changes, using the definition the diff itself names. Backports of the same fix to stable branches are counted once.

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typescript

#457 of 500 repositories

better-auth/better-auth

Name: better-auth/better-auth: functions patched by CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

Functions and files changed by CVE fixes in this repository.

Latest located fix July 15, 2026

13

CVE fixes located

Published CVEs

26

Functions patched

Distinct function sites

27

Files patched

Distinct source files

2024–2026

Years covered

By CVE publication date

Overview

13 published CVEs have a fix traced to functions in better-auth/better-auth, the earliest published in 2024. Those fixes changed 26 distinct functions across 27 files, in 144 patch hunks.

Among the 500 repositories tracked here, better-auth/better-auth ranks #457 by the number of CVEs with a located fix.

Most patched functions

Functions in better-auth/better-auth changed by the most CVE fixes.

Most patched files

Files in better-auth/better-auth changed by the most CVE fixes.

1packages/oauth-provider/src/token.ts2 CVEs · 4 functions
2packages/sso/src/routes/providers.ts2 CVEs · 3 functions
3packages/better-auth/src/plugins/mcp/index.ts2 CVEs · 2 functions
4packages/core/src/types/init-options.ts2 CVEs · 2 functions
5packages/sso/src/routes/sso.ts2 CVEs · 1 functions
6packages/better-auth/src/api/middlewares/origin-check.ts2 CVEs · 0 functions
7packages/better-auth/src/plugins/oidc-provider/index.ts2 CVEs · 0 functions
8packages/better-auth/src/utils/get-request-ip.ts1 CVEs · 2 functions
9packages/core/src/utils/ip.ts1 CVEs · 2 functions
10packages/better-auth/src/api/rate-limiter/index.ts1 CVEs · 1 functions

Fix size

How much code a CVE fix in better-auth/better-auth changes, with backports counted once.

86

Median lines changed

Added plus removed, per CVE

31%

Fixes of 20 lines or fewer

Share of CVE fixes

31%

Fixes in a single function

Share of CVE fixes

Latest CVEs

The most recently published CVEs with a fix located in better-auth/better-auth, and the functions each fix changed.

Better Auth OAuth Provider: Refresh Token Rotation Race Condition Allows Concurrent Replay and Token Family Forking
CVE-2026-53517createRefreshToken revokeRefreshToken invalidateRefreshFamily
High · CVSS 7.6
EPSS 0.4%2026-07-15
Better Auth: Device authorization approve and deny accept any authenticated session while the user code is pending
CVE-2026-45337
High · CVSS 7.6
EPSS 0.2%2026-07-15
Better Auth: Unauthorized invitation acceptance via unverified email match in organization plugin
CVE-2026-53514OrganizationOptions
High · CVSS 7.7
EPSS 0.2%2026-07-15
Better Auth: Privilege escalation via SSO provider registration: missing admin role check in @better-auth/sso
CVE-2026-53515hasOrgAdminRole isOrgAdmin batchCheckOrgAdmin
High · CVSS 7.1
EPSS 0.4%2026-07-15
Better Auth: OAuth refresh-token replay via missing client authentication on oidc-provider and mcp plugins
CVE-2026-53512then async
Critical · CVSS 9.1
EPSS 0.3%2026-07-15
Better Auth OAuth Provider: Race Condition in Authorization Code Exchange Enables Multi-Use Code Redemption
CVE-2026-53518checkVerificationValue
High · CVSS 7.6
EPSS 0.4%2026-07-15
Better Auth: Server-side request forgery via unvalidated OIDC endpoints on @better-auth/sso provider registration
CVE-2026-53513checks enum string
Critical · CVSS 9.6
EPSS 0.2%2026-07-15
Better Auth: Account takeover via OAuth auto-link to unverified pre-registered email
CVE-2026-53516BetterAuthOptions handleOAuthUserInfo
High · CVSS 8.3
EPSS 0.3%2026-07-15
Better Auth: Rate limiter keys IPv6 addresses individually and is bypassable via prefix rotation
CVE-2026-45364NormalizeIPOptions BetterAuthAdvancedOptions isValidIP
High · CVSS 7.3
EPSS 0.5%2026-05-28
Better Auth: Unauthenticated API key creation through api-key plugin
CVE-2025-61928createApiKey
Critical · CVSS 9.3
EPSS 17.9%2025-10-09
Better Auth has an Open Redirect Vulnerability in originCheck Middleware Affecting Multiple Routes
CVE-2025-53535
Low · CVSS 2.1
EPSS 0.4%2025-07-07
Beter Auth has an Open Redirect via Scheme-Less Callback Parameter
CVE-2025-27143
Medium · CVSS 6.9
EPSS 0.4%2025-02-24

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Frequently asked questions

Common questions about CVE fixes in better-auth/better-auth.

How many CVEs have a located fix in better-auth/better-auth?: 13 published CVEs have a fix traced to functions in better-auth/better-auth, touching 26 functions across 27 files.
Which function in better-auth/better-auth has been patched by the most CVEs?: hasOrgAdminRole in packages/sso/src/routes/providers.ts has been changed by 1 CVE fixes, from 2026 to 2026.
How large is a typical CVE fix in better-auth/better-auth?: The median fix changes 86 lines. 31% of fixes change 20 lines or fewer, and 31% change a single function.
How is a fix located to a function?: The upstream fix commit for each CVE is fetched and its diff is split into hunks. Each hunk is attributed to the function, method or type it changes, using the definition the diff itself names. Backports of the same fix to stable branches are counted once.

References

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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