CVE-2026-119143
Last modified
CVE-2026-119143 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows guest code to trigger a host panic through out-of-bounds zero-length stream operations. Malicious guests can perform zero-length component model stream reads or writes with unvalidated addresses, causing Direct{Source,Destination}::remaining to panic and crash WASIp3 embedders..
Description
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows guest code to trigger a host panic through out-of-bounds zero-length stream operations. Malicious guests can perform zero-length component model stream reads or writes with unvalidated addresses, causing Direct{Source,Destination}::remaining to panic and crash WASIp3 embedders.
Metrics
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-119143?
How severe is CVE-2026-119143?
How do I fix CVE-2026-119143?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-119138Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 conta…4.8
- CVE-2026-119139Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 conta…4.8
- CVE-2026-11914vulnerability in Drupal Composer allows . This issue affects…5.9
- CVE-2026-119140Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 conta…4.8
- CVE-2026-119141Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 conta…5.3
- CVE-2026-119142Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 conta…4.8
- CVE-2026-119144Frappe Framework before 15.111.0 and 16.x before 16.21.0 con…8.8
- CVE-2026-119145Frappe before 15.121.0 and 16.x before 16.34.0 contains a pa…9.9
- CVE-2026-119146ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overfl…5.6
- CVE-2026-119147ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorizatio…4.3
- CVE-2026-119148Incomplete string validation in AWS aws-nitro-enclaves-sdk-c…6.5
- CVE-2026-11915vulnerability in Drupal Brute force attack protection allows…5.9
Are you affected by CVE-2026-119143?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST