CVE-2020-10650Network attack vector

Unauthenticated code execution via unblocked JNDI gadgets

Published Dec 26, 2022 · Updated Apr 14, 2025

Unsafe deserialization in FasterXML jackson-databind before 2.9.10.4 allows remote attackers to execute code through crafted JSON. SubTypeValidator omitted three Ignite and Quartz JNDI gadget classes from its default denylist, allowing polymorphic deserialization to instantiate and populate them from attacker-controlled type identifiers. Exploitation requires untrusted JSON, class-name polymorphic typing with a permissive base type, and an affected ignite-jta or quartz-core gadget on the classpath.

CVSS severity8.1
High
EPSS probability3.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in FasterXML jackson-databind before 2.9.10.4 allows remote attackers to execute code through crafted JSON. SubTypeValidator omitted three Ignite and Quartz JNDI gadget classes from its default denylist, allowing polymorphic deserialization to instantiate and populate them from attacker-controlled type identifiers. Exploitation requires untrusted JSON, class-name polymorphic typing with a permissive base type, and an affected ignite-jta or quartz-core gadget on the classpath.

The record

CVE
CVE-2020-10650
Published
Dec 26, 2022
Updated
Apr 14, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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