CVE-2026-119143 — Vulnerability intelligence
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Published:
- CVSS
- 5.9
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
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.