CVE-2026-15538 primefaces primereact API ObjectUtils.js ObjectUtils.mutateFieldData prototype pollution
Remote attackers can exploit prototype pollution in PrimeReact's ObjectUtils to execute arbitrary code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15538?
CVE-2026-15538 is a medium-severity code injection vulnerability in primefaces primereact, published on 13 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in primefaces primereact up to 10.9.8. This issue affects the function ObjectUtils.mutateFieldData of the file components/lib/utils/ObjectUtils.js of the component API. This manipulation of the argument Field causes improperly controlled modification of object prototype attributes. The attack is possible to be carried out remotely. Upgrading to version 10.9.9 and 11.0.0 is capable of addressing this issue. Patch name: 61f182e11d9ef52032ff56f420da763a6938236f. It is recommended to upgrade the affected component.
Which versions are affected by CVE-2026-15538?
How do I fix CVE-2026-15538?
No fix has been published for CVE-2026-15538 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-15538 being exploited?
There is no known exploitation of CVE-2026-15538 in the wild and no public exploit code.
Sources
Also known as GHSA-hgqw-899r-rc46, GHSA-vg36-rrrg-4wqv.