Laravel Deserialization of Untrusted Data Vulnerability
Laravel Framework contains a deserialization of untrusted data vulnerability, allowing for remote command execution. This vulnerability may only be exploited if a malicious user has accessed the application encryption key (APP_KEY environment variable).
- Vendor
- Laravel
- Product
- Laravel Framework
- CVSS
- 8.1
- EPSS (exploit probability)
- 76.6%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2018-15133 being exploited?
Yes. CISA added CVE-2018-15133 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 76.6% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-23. Full cross-catalog view: /kev-comparison
CVE-2018-15133 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
What to do
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Laravel CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2025-54068 Laravel Livewire Code Injection Vulnerability | [ CRITICAL ] | 9.8 | 96.3% | |
| CVE-2021-3129 Laravel Ignition File Upload Vulnerabilityransomware use | [ CRITICAL ] | 9.8 | 99.9% |