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Vulnerability record · CVE-2026-92785 · published 16 September 2026

CVE-2026-92785: Deserialization of untrusted data vulnerability

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.

9.2 CVSS 4.0 Critical EPSS 0.61% · top 52.7% CWE-502 · Deserialization of untrusted data Deferred
9.2CVSS 4.0 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
24 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-92785), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.