CVE-2026-1280832.3LowCWE-502

CVE-2026-128083: Laravel: Task Output Injection - Concurrency Process

laravel · framework

Affected: laravel framework · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.7%probability of exploitation in the next 30 days

53rd percentile

050100

Higher than 53% of scored CVEs

2.3LowCVSS 4.0

LowMediumHighCrit.

DescriptionCVE.org

Laravel is a web application framework. Prior to 12.71.0 and 13.40.0, Laravel's Concurrency::run process driver can treat a forged internal result message in child standard output as framework output. An application route must invoke Concurrency::run, and a task must write attacker-controlled bytes at the start of the child's standard output that form a complete JSON document followed by gzip magic bytes. Under those application-specific conditions, an attacker can forge the internal result message and achieve remote code execution. The affected behavior is not exposed by default and requires application code that routes untrusted input into task output. This issue is fixed in versions 12.71.0 and 13.40.0.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

laravel · framework>= 13.0.0, < 13.40.0; < 12.71.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Deserialization of Untrusted Data · Deserialization and Object Injection
Vendor: laravel
Published: November 2026
Band: Unlikely (under 1%), November 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-128083 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.