---
id: CVE-2026-61687
title: >-
  Hatchet is a platform for orchestrating background tasks, AI agents, and
  durable workflows at scale
summary: >-
  Hatchet is a platform for orchestrating background tasks, AI agents, and
  durable workflows at scale. Prior to 0.91.1, ValidateOAuthState clears the
  oauth_state_ session value to an empty string after a successful OAuth
  callback and later…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N'
cwe:
  - CWE-287
  - CWE-352
  - CWE-384
  - CWE-1275
vendor: hatchet
product: hatchet
affected:
  - hatchet < 0.91.1
patched:
  - hatchet 0.91.1
published: '2026-09-21'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T16:17:09.997'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-61687'
references:
  - url: >-
      https://github.com/hatchet-dev/hatchet/commit/f90464189ad642251e09412d0f99fde353036428
    label: security-advisories@github.com
  - url: >-
      https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-phg3-3g28-wq9v
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-phg3-3g28-wq9v'
  - url: 'https://github.com/hatchet-dev/hatchet'
tags:
  - nvd
  - ghsa
  - go
  - cve.org
  - osv
aliases:
  - GHSA-phg3-3g28-wq9v
ecosystem: go
ingestedAt: '2026-09-21T16:11:47.439Z'
---

## Overview

Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.91.1, ValidateOAuthState clears the oauth_state_ session value to an empty string after a successful OAuth callback and later accepts an empty state parameter as equal, allowing an unauthenticated attacker to bind a victim's Hatchet session to an attacker-controlled OAuth identity. Exploitation requires the victim to have completed an OAuth flow in the current session and the deployment to enable auth.google.enabled, auth.github.enabled, or the Slack integration. This issue is fixed in version 0.91.1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-61687)

Affected packages:

- `hatchet < 0.91.1`

Patched in:

- `hatchet 0.91.1`

Source: https://github.com/advisories/GHSA-phg3-3g28-wq9v