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

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-10 · updated 2026-10-24
Weakness: CWE-476

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.

Affected products

fastschema: through 0.15.1

References

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

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