CVE-2026-49859
2 advisories.
deno/deno CVE-2026-49859: medium 5.2
`fetch()` API sandbox bypass via missing DNS resolution check
Action: Upgrade deno to 2.8.1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.8.1 | - |
Fixed versions
| 2.8.1 |
Sources
CVE-2026-49859 · published · modified · JSON
crates.io/deno CVE-2026-49859: medium 5.2
Deno: `fetch()` API sandbox bypass via missing DNS resolution check
Action: Upgrade deno to 2.8.1 or later.
cargo update -p deno --precise 2.8.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.8.1 | - |
Fixed versions
| 2.8.1 |
Sources
- osv: GHSA-cpgj-f7g3-2pp2
- https://github.com/denoland/deno/security/advisories/GHSA-cpgj-f7g3-2pp2
- https://nvd.nist.gov/vuln/detail/CVE-2026-49859
- https://github.com/denoland/deno
CVE-2026-49859 · published · modified · JSON