VDB
CVE-2026-27572
CVE-2026-27572
PUBLISHED
CVSS 6.900000095367432 MEDIUM
Wasmtime can panic when adding excessive fields to a `wasi:http/types.fields` instance
EPSS 0.74% · 54.1th percentile
Risk Scores
CVSS 4.0
6.900000095367432
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
EPSS Score
0.74%
54.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| bytecodealliance | wasmtime | 25.0.0, >= 25.0.0, < 36.0.6, >= 37.0.0, < 40.0.4 |
| crates.io | wasmtime | 25.0.0, 0, 25.0.0 |
Timeline
- Feb 24, 2026 CVE Published
- Feb 25, 2026 EPSS Score
- Feb 25, 2026 PoC Published
- Feb 25, 2026 CVE Updated
- Feb 25, 2026 PoC Published
- Feb 27, 2026 EPSS Score
- Mar 2, 2026 EPSS Score
- Mar 4, 2026 EPSS Score
- Mar 6, 2026 EPSS Score
- Mar 9, 2026 EPSS Score
- Mar 11, 2026 EPSS Score
- Mar 13, 2026 EPSS Score
References
- https://github.com/bytecodealliance/wasmtime/commit/301dc7162cca51def19131019af1187f45901c0a fix
- https://github.com/bytecodealliance/wasmtime/releases/tag/v36.0.6 fix
- https://github.com/bytecodealliance/wasmtime/releases/tag/v40.0.4 fix
- https://github.com/bytecodealliance/wasmtime/releases/tag/v41.0.4 fix
- https://github.com/bytecodealliance/wasmtime/releases/tag/v24.0.6 fix
- https://docs.rs/http/1.4.0/http/header/#limitations url
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-243v-98vx-264h url
- https://nvd.nist.gov/vuln/detail/CVE-2026-27572 advisory
- https://github.com/bytecodealliance/wasmtime package
- https://rustsec.org/advisories/RUSTSEC-2026-0021.html url