TI-2026-50188 Aliases CVE-2026-71867 GHSA-2w86-xfrc-g85r

Orval: RCE via schema property name -> computed-property-key injection in the MSW mock generator

HIGH 81CWE-89Published 2026-08-19 · Updated 2026-08-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: SQL injection, Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-89 and CWE-95.

Summary

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a single quote in a schema property name is emitted into single-quoted object keys in generated MSW mock factories without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated mock factory is called by tests or an MSW handler, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/core/src/getters/keys.ts function getKey and MSW mock generation. This issue is fixed in version 8.21.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00653 51st percentileScored 2026-11-07

Fix Fixed orval (orval-labs): 8.21.0orval (npm): 8.21.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
orval-labs	orval	before 8.21.0	8.21.0	Patch available	CNA
—	orval (npm)	before 8.21.0	8.21.0	Patch available	GHSA-2w86-xfrc-g85r

orval Vendororval-labs Affected before 8.21.0 Fixed in 8.21.0 Patch available CNA
orval (npm) Vendor— Affected before 8.21.0 Fixed in 8.21.0 Patch available GHSA-2w86-xfrc-g85r

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:orval:orval::::::::	—	—	orval-labs

cpe:2.3:a:orval:orval:*:*:*:*:*:*:*:* Versions — — ·orval-labs

Remediation

Fix · CNA orval (orval-labs) Fixed in 8.21.0
Fix · GHSA-2w86-xfrc-g85r orval (npm) Fixed in 8.21.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-71867
2026-10-03 Alias added: GHSA-2w86-xfrc-g85r
2026-10-14 EPSS moved to the 50th–90th percentile

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-71867

Other 5

TI-2026-63855 orval before 8.29.0 Code Injection via operationId CVSS 4.0CRITICAL 9.3
TI-2026-63854 orval @orval/core before 8.28.0 Code Injection via Form-Data CVSS 4.0CRITICAL 9.3
TI-2026-63853 orval before 8.29.0 Code Injection via unescaped OpenAPI media-type CVSS 4.0CRITICAL 9.3
TI-2026-63850 orval @orval/hono before 8.29.0 Code Injection via OpenAPI Path CVSS 4.0CRITICAL 9.3
TI-2026-50952 Orval: Import-time RCE via schema default -> zod module-level template literal CVSS 4.0CRITICAL 9.3
TI-2026-50951 Orval: Import-time RCE via query-parameter default -> zod module-level template literal CVSS 4.0CRITICAL 9.3

See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences