VDB-81076 · CVE-2016-2537 · EUVD-2017-0222

is-my-json-valid up to 2.12.3 Regex input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in is-my-json-valid up to 2.12.3. The affected element is an unknown function of the component Regex Handler. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2016-2537. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in is-my-json-valid up to 2.12.3 and classified as critical. This vulnerability affects some unknown functionality of the component Regex Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The is-my-json-valid package before 2.12.4 for Node.js has an incorrect exports['utc-millisec'] regular expression, which allows remote attackers to cause a denial of service (blocked event loop) via a crafted string.

The weakness was released 02/23/2016 (Website). The advisory is shared for download at nodesecurity.io. This vulnerability was named CVE-2016-2537 since 02/21/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.12.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2017-0222). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

is-my-json-valid

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: is-my-json-valid 2.12.4
Patch: github.com

Timelineinfo

02/21/2016 🔍
02/23/2016 +1 days 🔍
02/23/2016 +0 days 🔍
02/24/2016 +1 days 🔍
10/18/2025 +3524 days 🔍

Sourcesinfo

Advisory: eca4beb21e61877d76fdf6bea771f72f39544d9b
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-2537 (🔍)
GCVE (CVE): GCVE-0-2016-2537
GCVE (VulDB): GCVE-100-81076
EUVD: 🔍

Entryinfo

Created: 02/24/2016 09:29
Updated: 10/18/2025 04:34
Changes: 02/24/2016 09:29 (49), 08/09/2018 07:37 (8), 07/08/2022 13:43 (5), 10/18/2025 04:34 (17)
Complete: 🔍
Cache ID: 216:4A9:103