CVE-2026-22785: orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification

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CRITICAL 9.8REMOTEUPGRADE

CVE-2026-22785 is a critical-severity flaw (CVSS 9.8) affecting orval. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Prior to 7.18.0, the MCP server generation logic relies on string manipulation that incorporates the summary field from the OpenAPI specification without proper validation or escaping. This allows an attacker to "break out" of the string literal and inject arbitrary code. This vulnerability is fixed in 7.18.0.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-77
Published	2026-01-12
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: orval

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-12 19:16 UTCPublished CVE record published
2026-06-17 10:20 UTCUpdated Record last modified

orval orval UPGRADE

Affected: < 7.18.0

Fixed in: 7.18.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy orval || rpm -q orval || orval --version

2. UPGRADE to 7.18.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade orval

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade orval

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

npm · @orval/mcp · FIXED · 7.18.0 · vulnerable: < 7.18.0 · source

npm install @orval/mcp@">=7.18.0" npm ls @orval/mcp

Fedora 46 · jgmenu · FIXED · 4.7.0-1.fc46 · FEDORA-2026-3053ee4399 · source

sudo dnf upgrade --advisory=FEDORA-2026-3053ee4399

Fedora ELN · python-tkrzw · FIXED · 0.1.32-12.eln159 · FEDORA-2026-0161d71544 · source

sudo dnf upgrade --advisory=FEDORA-2026-0161d71544

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: langbyyi/CVE-2026-22785 (1 stars)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-22785?

orval: upgrade to 7.18.0. Exact commands for each OS are on this page.

Is CVE-2026-22785 being exploited?

CVE-2026-22785 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-22785 affect?

CVE-2026-22785 affects orval. Severity is critical (CVSS 9.8). orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Prior to 7.18.0, the MCP server generation logic relies on string manipulation that incorporates the summary field from the OpenAPI spe

How urgent is CVE-2026-22785?

Priority 61/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-24132 CRITICAL 9.8 UPGRADE Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification

References

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