CVE-2026-115893: Wasmtime: Cranelift backend on aarch64 can jump to incorrect target on large Wasm `br_table` instruction
Wasmtime: Cranelift backend on aarch64 can jump to incorrect target on large Wasm `br_table` instruction
- Published by source
- 2026-10-13
- First seen by Reality Radar
- 2026-10-29
- Last verified
- 2026-10-29
Affected
- Manufacturer
- Microsoft
- Products
- azl3 rust 1.75.0-31 on Azure Linux 3.0 azl3 rust 1.96.1-2 on Azure Linux 3.0
- CPE
- cpe:2.3:a:microsoft:azl3_rust_1.75.0-31:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:azl3_rust_1.96.1-2:*:*:*:*:*:*:*:*
Whether your exact unit is affected depends on the model, serial number and region in the official notice.
What the official notice says
Risk: Critical
Remedy / actions:
- Install the latest Microsoft security update
Is this affecting you?
Add what you own or use and Reality Radar will tell you when official changes match it — with evidence and next steps.
Sources
- Microsoft Security Update Guide (MSRC) Tier A · official published 2026-10-13
Evidence ledger
Every piece of evidence we store is appended to a public hash chain, so later edits are detectable. Anyone can re-verify it.
| Entry | Kind | Observed | Evidence hash | Entry hash |
|---|---|---|---|---|
| #2965 | new | 2026-10-29 | 78d1235ad77a…8c5c54 | bd8a027ea4d9…407bcf |
Chain head: #3001 80f323478457…4b8d7a