How many CVEs have patched normalizeIP?

1 published CVEs changed normalizeIP in better-auth/better-auth, in 2 distinct patches totalling 2 changed lines, between 2026 and 2026.

What is the latest CVE that changed normalizeIP?

CVE-2026-45364 (Better Auth: Rate limiter keys IPv6 addresses individually and is bypassable via prefix rotation), published 2026-05-28, changed lines 195 of packages/core/src/utils/ip.ts.

How does normalizeIP compare to the rest of better-auth/better-auth?

better-auth/better-auth has 13 CVEs with a located fix in total; 1 of them changed normalizeIP.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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Patched Functions
Better Auth
Better Auth
NormalizeIP

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Weaknesses (CWE)The MITRE CWE weakness catalog
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Patched Functions
Better Auth
Better Auth
NormalizeIP

normalizeIP in better-auth/better-auth: Patched by 1 CVEs

better-auth/better-auth

Function

normalizeIP

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

packages/core/src/utils/ip.ts

Last patched May 28, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

normalizeIP in better-auth/better-auth was changed by 1 published CVE fixes in 2026, in 2 distinct patches that added or removed 2 lines in total.

better-auth/better-auth has 13 CVEs with a located fix in total, so 8% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed normalizeIP, newest first, with the lines each fix touched.

Better Auth: Rate limiter keys IPv6 addresses individually and is bypassable via prefix rotation
CVE-2026-45364 · line 195 · +1 −1
High · CVSS 7.3
EPSS 0.5%2026-05-28

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Other hotspots in the repository

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

batchCheckOrgAdmin1 CVEs · packages/sso/src/routes/providers.ts isOrgAdmin1 CVEs · packages/sso/src/routes/providers.ts hasOrgAdminRole1 CVEs · packages/sso/src/routes/providers.ts then1 CVEs · packages/better-auth/src/plugins/mcp/index.ts async1 CVEs · packages/better-auth/src/plugins/mcp/index.ts mapDiscoveryErrorToAPIError1 CVEs · packages/sso/src/oidc/errors.ts

All patched functions in better-auth/better-auth

Frequently asked questions

Common questions about CVE fixes to normalizeIP.

How many CVEs have patched normalizeIP?: 1 published CVEs changed normalizeIP in better-auth/better-auth, in 2 distinct patches totalling 2 changed lines, between 2026 and 2026.
What is the latest CVE that changed normalizeIP?: CVE-2026-45364 (Better Auth: Rate limiter keys IPv6 addresses individually and is bypassable via prefix rotation), published 2026-05-28, changed lines 195 of packages/core/src/utils/ip.ts.
How does normalizeIP compare to the rest of better-auth/better-auth?: better-auth/better-auth has 13 CVEs with a located fix in total; 1 of them changed normalizeIP.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

packages/core/src/utils/ip.ts on GitHub (opens in a new tab)
All patched functions in better-auth/better-auth
Patched functions directory

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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Overview
CVEs that patched it
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References