VDB-377888 · Submit #855024 · CVE-2026-15538

primefaces primereact up to 10.9.8 API ObjectUtils.mutateFieldData Field prototype pollution

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.
6.1	$0-$5k	1.11+

Summaryinfo

A vulnerability classified as critical was found in primefaces primereact up to 10.9.8. Impacted is the function ObjectUtils.mutateFieldData of the component API. Such manipulation of the argument Field leads to prototype pollution. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is listed as CVE-2026-15538. The attack may be performed from remote. There is no available exploit. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in primefaces primereact up to 10.9.8 and classified as critical. Affected by this issue is the function ObjectUtils.mutateFieldData of the component API. The manipulation of the argument field with an unknown input leads to a prototype pollution vulnerability. Using CWE to declare the problem leads to CWE-1321. The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. Impacted is confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-15538. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/12/2026). The MITRE ATT&CK project declares the attack technique as T1059.

The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

JavaScript Library

Vendor

primefaces

Name

primereact

Version

Support

end of life

Website

Product: https://github.com/primefaces/primereact/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

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: 🔍

Exploitinginfo

Class: Prototype pollution
CWE: CWE-1321 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
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: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/12/2026 Advisory disclosed
07/12/2026 +0 days VulDB entry created
07/12/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 8553
Status: Not defined
Confirmation: 🔒

CVE: CVE-2026-15538 (🔒)
GCVE (CVE): GCVE-0-2026-15538
GCVE (VulDB): GCVE-100-377888

Entryinfo

Created: 07/12/2026 20:08
Changes: 07/12/2026 20:08 (58)
Complete: 🔍
Submitter: Dremig
Cache ID: 216::103

Submitinfo

Accepted

Submit #855024: Node.js primereact 10.9.8 Prototype Pollution (by Dremig)