WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime.
WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to 2.4.5, the two-pass fast interpreter loader in core/iwasm/interpreter/wasm_loader.c can make inconsistent constant-table decisions between the sizing pass and the emitting pass. After duplicate constants inflate the first pass beyond the constant-slot limit, wasm_loader_get_const_offset emits later constants inline, but the between-pass sort and deduplication reduces the table so the second pass can choose table references and cause reserve_block_ret to emit additional copy operands that were not included in code_compiled_peak_size. A crafted module can therefore make the second pass write parti
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Bytecodealliance
- Product
- wasm-micro-runtime
- CVSS v4.0
- 8.8 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Exploitation
- SSVC poc, automatable no, impact total
- Fix
- available
- Weakness
- CWE-787
- NVD status
- Received
Why it ranks 45 (High)
- Public exploit code reported
- CVSS v4.0 8.8 high
- SSVC: total technical impact
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-54912 on this site · NVD · CVE.org · Vulnpedia
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