CVE-2026-110616: NullHub

The National Vulnerability Database (NVD) records that NullHub through 2026.5.29 leaves its /api/* management API unauthenticated on non-loopback listeners, letting a caller control agent instances, rewrite provider credentials, and manage cron jobs and Model Context Protocol (MCP) servers.

The record

Kind

Vulnerability

Source record

CVE-2026-110616: NullHub through 2026.5.29 contains a missing authentication vulnerability that allows unauthenticated attacker (National Vulnerability Database record)

Record published

2026-10-14

Posted here

2026-10-15

World

Software agents · Enterprise work agents

Controls concerned

Actor identity verification C-A1; Authority binding C-A2

Checked

Checked against its record on 2026-10-22 by a reader who did not draft it; report verification/reports/SIG-2026-10-15-001-2026-10-22.md.

A signal's controls are the ones its record points at, the exposure; a case's controls are the ones its records show were absent or failed, so the two can differ.

Corrections

Changes to what this signal says, with the reason. Every earlier version is kept.

• 2026-10-22: Summary. Plain-language rule: abbreviations spelled out at first use (NVD, MCP, SDK). No claim changed. 22 October 2026.
  Show the change

  Before: NVD records that NullHub through 2026.5.29 leaves its /api/* management API unauthenticated on non-loopback listeners, letting a caller control agent instances, rewrite provider credentials, and manage cron jobs and MCP servers.

  After: The National Vulnerability Database (NVD) records that NullHub through 2026.5.29 leaves its /api/* management API unauthenticated on non-loopback listeners, letting a caller control agent instances, rewrite provider credentials, and manage cron jobs and Model Context Protocol (MCP) servers.

What a signal is. A signal records what a primary record says; it assigns no fault. It is lighter than a case: one dated item from one record, tagged with the world, sector and controls it touches. It becomes a case when it meets the bar for one.

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