CVE-2022-46175

highpriority · attend · 48EPSS 0.092 · 95 %ileexploit · PoCDEEURUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
9.16% (95th) EPSS
CVSS 8.8 · high
Is it mine?
46 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

JSON5 is an extension to the popular JSON file format that aims to be easier to write and maintain by hand (e.g. for config files). The `parse` method of the JSON5 library before and including versions 1.0.1 and 2.2.1 does not restrict parsing of keys named `__proto__`, allowing specially crafted strings to pollute the prototype of the resulting object. This vulnerability pollutes the prototype of the object returned by `JSON5.parse` and not the global Object prototype, which is the commonly understood definition of Prototype Pollution. However, polluting the prototype of a single object can have significant security impact for an application if the object is later used in trusted operations. This vulnerability could allow an attacker to set arbitrary and unexpected keys on the object returned from `JSON5.parse`. The actual impact will depend on how applications utilize the returned object and how they filter unwanted keys, but could include denial of service, cross-site scripting, elevation of privilege, and in extreme cases, remote code execution. `JSON5.parse` should restrict parsing of `__proto__` keys when parsing JSON strings to objects. As a point of reference, the `JSON.parse` method included in JavaScript ignores `__proto__` keys. Simply changing `JSON5.parse` to `JSON.parse` in the examples above mitigates this vulnerability. This vulnerability is patched in json5 versions 1.0.2, 2.2.2, and later.

01

cvss

Technical severity, 0–10. One row per scoring source.

8.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9
v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.1highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:Hsecondary · ENISA EU
v3.17.1highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:Hsecondary · security-advisories@github.comexploitability 1.6 · impact 5.5
v3.17.1highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:Hsecondary · OSV
v3.18.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

exploits (1)

Public proof-of-concept and weaponised exploit code.

04

affected products (46)

Products and version ranges known to be affected.

showing 20 of 46
05

advisories (9)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2023-0328Red Hat OpenShift: Mehrere SchwachstellenDeutsch2023-02-09csaf · cert_bundDE

    Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial of Service Angriff durchzuführen oder Daten zu manipulieren.

  • WID-SEC-W-2023-1350Splunk Splunk Enterprise: Mehrere Schwachstellen in Komponenten von DrittanbieternDeutsch2023-06-01csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise in diversen Komponenten von Drittanbietern ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

  • WID-SEC-W-2023-1542Red Hat OpenShift: Mehrere SchwachstellenDeutsch2023-06-22csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial of Service Zustand herbeizuführen, Informationen offenzulegen, Dateien zu manipulieren oder Sicherheitsvorkehrungen zu umgehen.

  • WID-SEC-W-2023-2229Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2023-08-30csaf · cert_bundDE

    Ein entfernter, authentifizierter Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, einen 'Denial of Service'-Zustand zu verursachen, seine Privilegien zu erweitern und weitere, nicht spezifizierte Auswirkungen zu verursachen.

  • WID-SEC-W-2024-0049Splunk Enterprise: Mehrere SchwachstellenDeutsch2024-01-09csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Splunk Enterprise ausnutzen, um beliebigen Programmcode auszuführen, einen Denial of Service Zustand herbeizuführen oder unbekannte Auswirkungen zu verursachen.

  • WID-SEC-W-2024-0528Dell Data Protection Advisor: Mehrere SchwachstellenDeutsch2024-02-29csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell Data Protection Advisor ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand herbeizuführen, Dateien zu manipulieren, vertrauliche Informationen offenzulegen, seine Berechtigungen zu erweitern oder einen nicht spezifizierten Angriff durchzuführen.

  • WID-SEC-W-2024-3678Atlassian Confluence: Mehrere SchwachstellenDeutsch2024-12-10csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Atlassian Confluence ausnutzen, um einen Denial of Service Angriff durchzuführen, Daten zu manipulieren oder Sicherheitsvorkehrungen zu umgehen.

  • WID-SEC-W-2026-3376Atlassian Bamboo, Bitbucket, Confluence, Fisheye/Crucible, Jira Software und Jira Service Management: Mehrere SchwachstellenDeutsch2026-09-15csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Atlassian Bamboo, Bitbucket, Confluence, Fisheye/Crucible, Jira Software und Jira Service Management ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, serverseitige Request-Forgery-Angriffe (SSRF) durchzuführen, Cross-Site-Scripting-Angriffe zu starten, sensible Informationen offenzulegen, Daten zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.

  • GHSA-9c47-m6qq-7p4hPrototype Pollution in JSON5 via Parse Method2022-12-29ghsa · osvUS

    The `parse` method of the JSON5 library before and including version `2.2.1` does not restrict parsing of keys named `__proto__`, allowing specially crafted strings to pollute the prototype of the resulting object. This vulnerability pollutes the prototype of the object returned by `JSON5.parse` and not the global Object prototype, which is the commonly understood definition of Prototype Pollution. However, polluting the prototype of a single object can have significant security impact for an application if the object is later used in trusted operations. ## Impact This vulnerability could allow an attacker to set arbitrary and unexpected keys on the object returned from `JSON5.parse`. The actual impact will depend on how applications utilize the returned object and how they filter unwanted keys, but could include denial of service, cross-site scripting, elevation of privilege, and in extreme cases, remote code execution. ## Mitigation This vulnerability is patched in json5 v2.2.2 and later. A patch has also been backported for json5 v1 in versions v1.0.2 and later. ## Details Suppose a developer wants to allow users and admins to perform some risky operation, but they want to restrict what non-admins can do. To accomplish this, they accept a JSON blob from the user, parse it using `JSON5.parse`, confirm that the provided data does not set some sensitive keys, and then performs the risky operation using the validated data: ```js const JSON5 = require('json5'); const doSomethingDangerous = (props) => { if (props.isAdmin) { console.log('Doing dangerous thing as admin.'); } else { console.log('Doing dangerous thing as user.'); } }; const secCheckKeysSet = (obj, searchKeys) => { let searchKeyFound = false; Object.keys(obj).forEach((key) => { if (searchKeys.indexOf(key) > -1) { searchKeyFound = true; } }); return searchKeyFound; }; const props = JSON5.parse('{"foo": "bar"}'); if (!secCheckKeysSet(props, ['isAdmin', 'isMod'])) { doSomethingDangerous(props); // "Doing dangerous thing as user." } else { throw new Error('Forbidden...'); } ``` If the user attempts to set the `isAdmin` key, their request will be rejected: ```js const props = JSON5.parse('{"foo": "bar", "isAdmin": true}'); if (!secCheckKeysSet(props, ['isAdmin', 'isMod'])) { doSomethingDangerous(props); } else { throw new Error('Forbidden...'); // Error: Forbidden... } ``` However, users can instead set the `__proto__` key to `{"isAdmin": true}`. `JSON5` will parse this key and will set the `isAdmin` key on the prototype of the returned object, allowing the user to bypass the security check and run their request as an admin: ```js const props = JSON5.parse('{"foo": "bar", "__proto__": {"isAdmin": true}}'); if (!secCheckKeysSet(props, ['isAdmin', 'isMod'])) { doSomethingDangerous(props); // "Doing dangerous thing as admin." } else { throw new Error('Forbidden...'); } ```

06

also known as (4)

Other names and identifiers for this entity.

07

sources

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08

references (25)

External citations — patches, advisories, analysis.

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