CVE-2022-47937Network attack vector

Application crashes via malformed JSON parsing

Published May 15, 2023 · Updated Oct 10, 2024

Improper input validation in Apache Sling Commons JSON 2.0.20 and earlier allows remote attackers to crash applications via crafted JSON. Apache has not published which parser routines mishandle the crafted structures; upstream testing reproduced out-of-memory conditions and stack overflows. Exposure requires a consuming application to pass attacker-controlled JSON to the embedded bundle, where resource exhaustion can interrupt that application.

CVSS severity9.8
Critical
EPSS probability2.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Apache Sling Commons JSON 2.0.20 and earlier allows remote attackers to crash applications via crafted JSON. Apache has not published which parser routines mishandle the crafted structures; upstream testing reproduced out-of-memory conditions and stack overflows. Exposure requires a consuming application to pass attacker-controlled JSON to the embedded bundle, where resource exhaustion can interrupt that application.

The record

CVE
CVE-2022-47937
Published
May 15, 2023
Updated
Oct 10, 2024
Vendor
The Apache Software Foundation
Product
Apache Sling Commons JSON
Classifications
CWE-20, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 10, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.0.20

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Sling Commons JSONversion=0 <=2.0.20

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/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.

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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-20Improper Input Validation
T1499Endpoint Denial of Service

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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