9.8
CRITICAL
CVE-2021-3918
Apache json-schema Prototype Pollution Violation
Description

json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

INFO

Published Date :

Nov. 13, 2021, 9:15 a.m.

Last Modified :

Feb. 3, 2023, 7:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-3918 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-3918 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Json-schema_project json-schema
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-3918.

URL Resource
https://github.com/kriszyp/json-schema/commit/22f146111f541d9737e832823699ad3528ca7741 Patch Third Party Advisory
https://huntr.dev/bounties/bb6ccd63-f505-4e3a-b55f-cd2662c261a9 Exploit Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00013.html Mailing List Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Dockerfile Go JavaScript

Updated: 9 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 12, 2024, 7:11 a.m. This repo has been linked 2 different CVEs too.

A centralized repository of standalone security patches for open source libraries.

appsec backport cve devsecops fix hotfix open-source patch protection remediation seal security update upgrade vulnerability

Updated: 5 months ago
182 stars 0 fork 0 watcher
Born at : July 30, 2023, 4:46 p.m. This repo has been linked 265 different CVEs too.

Tool for validating Grafana community plugins

Go Dockerfile JavaScript

Updated: 2 days, 5 hours ago
24 stars 7 fork 7 watcher
Born at : Aug. 16, 2020, 6:58 a.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-3918 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3918 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Feb. 03, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/12/msg00013.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/12/msg00013.html Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 06, 2022

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2022/12/msg00013.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Jul. 29, 2022

    Action Type Old Value New Value
    Removed CWE NIST CWE-915
    Added CWE NIST CWE-1321
  • CVE Modified by [email protected]

    May. 12, 2022

    Action Type Old Value New Value
    Added CWE huntr.dev CWE-1321
  • Initial Analysis by [email protected]

    Nov. 16, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/kriszyp/json-schema/commit/22f146111f541d9737e832823699ad3528ca7741 No Types Assigned https://github.com/kriszyp/json-schema/commit/22f146111f541d9737e832823699ad3528ca7741 Patch, Third Party Advisory
    Changed Reference Type https://huntr.dev/bounties/bb6ccd63-f505-4e3a-b55f-cd2662c261a9 No Types Assigned https://huntr.dev/bounties/bb6ccd63-f505-4e3a-b55f-cd2662c261a9 Exploit, Issue Tracking, Patch, Third Party Advisory
    Added CWE NIST CWE-915
    Added CPE Configuration OR *cpe:2.3:a:json-schema_project:json-schema:*:*:*:*:*:*:*:* versions up to (excluding) 0.4.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-3918 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.50 }} -0.01%

score

0.76744

percentile

CVSS31 - Vulnerability Scoring System
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