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Wasmtime can panic when adding excessive fields to a `wasi:http/types.fields` instance
Wasmtime can panic when adding excessive fields to a `wasi:http/types.fields` instance
Affected packages
- wasmtime
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-243v-98vx-264h
- https://nvd.nist.gov/vuln/detail/CVE-2026-27572
- https://github.com/bytecodealliance/wasmtime/commit/301dc7162cca51def19131019af1187f45901c0a
- https://docs.rs/http/1.4.0/http/header/#limitations
- https://github.com/bytecodealliance/wasmtime
- https://github.com/bytecodealliance/wasmtime/releases/tag/v24.0.6
- https://github.com/bytecodealliance/wasmtime/releases/tag/v36.0.6
- https://github.com/bytecodealliance/wasmtime/releases/tag/v40.0.4
- https://github.com/bytecodealliance/wasmtime/releases/tag/v41.0.4
- https://rustsec.org/advisories/RUSTSEC-2026-0021.html
Structured record: https://osv.dev/vulnerability/GHSA-243v-98vx-264h
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