CVE-2026-15538: primefaces primereact

primefaces primereact API ObjectUtils.js ObjectUtils.mutateFieldData prototype pollution

CVSS 5.3 MediumEPSS 0.0054 · 45th percentile

Published by the CVE Program (CNA: VulDB) at 13 Jul 2026, 06:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
primefaces	primereact	affected 10.9.0 affected 10.9.1 affected 10.9.2 affected 10.9.3 affected 10.9.4 affected 10.9.5 affected 10.9.6 affected 10.9.7 affected 10.9.8 unaffected 10.9.9 unaffected 11.0.0

Identifiers

CVE-2026-15538

CNA

VulDB

Weakness (CWE)

CWE-94 · CWE-1321

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.3	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X	CNA (VulDB)Used for this record
6.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C	CNA (VulDB)
6.3	Medium	3.0	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C	CNA (VulDB)
6.5	Medium	2.0	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C	CNA (VulDB)

CISA KEV Not listed.
EPSS 0.0054, the 45th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 13 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

vuldb.com/vuln/377888 vdb-entrytechnical-description
vuldb.com/vuln/377888/cti signaturepermissions-required
vuldb.com/cve/CVE-2026-15538 third-party-advisory
vuldb.com/submit/855024 third-party-advisory
github.com/primefaces/primereact/issues/8553 issue-tracking
github.com/primefaces/primereact/security/advisories/GHSA-hgqw-899r-rc46 related
github.com/primefaces/primereact/commit/61f182e11d9ef52032ff56f420da763a6938236f patch
github.com/primefaces/primereact/releases/tag/10.9.9 patch
github.com/Mantle-UI/mantle-ui/issues/50 issue-tracking
github.com/primefaces/primereact/ product

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.