CVE-2026-27190 json
Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process
published 2026-02-19 8 mo ago modified 2026-07-25 3 mo ago also EUVD-2026-7794 , GHSA-hmh4-3xvx-q5hr , JLSEC-2026-116
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.5%
- EPSS 2.5% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.6.8, a command injection vulnerability exists in Deno's node:child_process implementation. This vulnerability is fixed in 2.6.8.
Patch / fix
- crates.io deno 2.6.8
- julia Deno_jll 2.6.10+0
- deno deno 2.6.8
- deno deno_runtime 2.6.8
- deno serde_v8 2.6.8
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
2.46% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/denoland/deno/security/advisories/GHSA-hmh4-3xvx-q5hr referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | deno | <2.6.8 |
2.6.8 |
| julia | Deno_jll | <2.6.10+0 |
2.6.10+0 |
Affected products
- denoland deno
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
github.com
/denoland/deno/commit/9132ad958c83a0d0b199de12b69b877f63edab4c
web, patch
-
github.com
/denoland/deno/security/advisories/GHSA-hmh4-3xvx-q5hr
web, exploit, vendor-advisory
-
github.com
/denoland/deno/releases/tag/v2.6.8
web, product, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-27190
advisory, web
-
github.com
/denoland/deno
package
-
github.com
/advisories/GHSA-hmh4-3xvx-q5hr
web
Sources
- CVE List CVE-2026-27190
- GitHub Advisory GHSA-hmh4-3xvx-q5hr
- NVD CVE-2026-27190
- OSV JLSEC-2026-116
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.