Medium [CVE-2026-119132] Denial of Service via overlapping string transcoding in fused adapters
This medium-severity Red Hat Linux advisory covers CVE-2026-119132 affecting Red Hat Connectivity Link 1, Red Hat Enterprise Linux 10, Red Hat package: tree-sitter.
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Summary
A flaw was found in wasmtime. This vulnerability allows an untrusted WebAssembly (Wasm) guest program to cause a Denial of Service (DoS) by triggering an unhandled host process crash.
When converting text between components using overlapping memory buffers, the runtime panics and terminates the host application instead of safely handling the error. Red Hat severity: Moderate — CVSS 4.8 (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H).
Weakness: CWE-617. Affected Red Hat products: Red Hat Connectivity Link 1; Red Hat Enterprise Linux 10.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: tree-sitter; Red Hat package: virt-firmware-rs.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · medium-confidence parse· fetched 8 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 8 hours ago·verify at source
Mitigation
The source record does not include mitigation steps. That does not mean no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 8 hours ago·verify at source
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