---
id: CVE-2026-92785
title: >-
  Angel through 3.3.0 deserializes untrusted setAlgoMetrics payload using Kryo
  without class registration or allowlist validation
summary: >-
  Angel through 3.3.0 deserializes untrusted setAlgoMetrics payload using Kryo
  without class registration or allowlist validation. Unauthenticated network
  attackers can instantiate arbitrary classes or exhaust coordinator memory by
  sending…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-502
vendor: Angel-ML
product: angel
affected:
  - angel <= 3.3.0
published: '2026-09-16'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:48:01.433'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92785'
references:
  - url: 'https://github.com/Angel-ML/angel'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Angel-ML/angel/blob/Release-3.3.0/angel-ps/core/src/main/java/com/tencent/angel/utils/KryoUtils.java#L45-L70
    label: disclosure@vulncheck.com
  - url: 'https://github.com/Angel-ML/angel/issues/1355'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/angel-through-3.3.0-unauthenticated-kryo-deserialization-of-arbitrary-classes
    label: disclosure@vulncheck.com
  - url: 'https://github.com/Angel-ML/angel/issues/1355'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00614
epssPercentile: 0.47078
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-17T15:03:22.659125Z'
ingestedAt: '2026-09-16T21:05:36.889Z'
---

## Overview

Angel through 3.3.0 deserializes untrusted setAlgoMetrics payload using Kryo without class registration or allowlist validation. Unauthenticated network attackers can instantiate arbitrary classes or exhaust coordinator memory by sending crafted serialized objects to the master RPC endpoint.

## Remediation

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