How severe is CVE-2026-25141?

CVE-2026-25141 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-25141 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25141?

CVE-2026-25141 affects Orval. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25141?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-25141 have an EU (EUVD) identifier?

Yes. CVE-2026-25141 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5007.

When was CVE-2026-25141 published?

CVE-2026-25141 was published on 2026-01-30 and last updated on 2026-06-17.

CVE-2026-25141

CVE-2026-25141 is a critical-severity vulnerability in Orval with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5007
Weakness: CWE-94
Affected product: Orval
Published: 2026-01-30
Last modified: 2026-06-17

Description

Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026-23947. While the jsStringEscape function properly handles single quotes ('), double quotes (") and so on, it is still possible to achieve code injection using only a limited set of characters that are currently not escaped. The vulnerability lies in the fact that the application can be forced to execute arbitrary JavaScript using characters such as []()!+. By using a technique known as JSFuck, an attacker can bypass the current sanitization logic and run arbitrary code without needing any alphanumeric characters or quotes. Version 7.21.0 and 8.2.0 contain an updated fix.

Frequently asked questions

What is CVE-2026-25141?: Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026-23947. While the jsStringEscape function properly handles single quotes ('), double quotes (") and so on, it is still possible to achieve code injection using only a limited set of characters that are currently not escaped. The vulnerability lies in the fact that the application can be forced to execute arbitrary JavaScript using characters such as []()!+. By using a technique known as JSFuck, an attacker can bypass the current sanitization logic and run arbitrary code without needing any alphanumeric characters or quotes. Version 7.21.0 and 8.2.0 contain an updated fix.
How severe is CVE-2026-25141?: CVE-2026-25141 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-25141 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25141?: CVE-2026-25141 affects Orval. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25141?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-25141 have an EU (EUVD) identifier?: Yes. CVE-2026-25141 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5007.
When was CVE-2026-25141 published?: CVE-2026-25141 was published on 2026-01-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:orval:orval:*:*:*:*:*:*:*:*

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