CVE-2026-6991
CVE-2026-6991 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. 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-74.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v2: 6.5
- CVSS v4: 2.1
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-25667
- Weakness: CWE-74
- Published:
- Last modified:
Description
A vulnerability was determined in colinhacks Zod up to 4.3.6. The impacted element is an unknown function of the file packages/zod/src/v4/core/regexes.ts of the component CUID Data Type Handler. Executing a manipulation can lead to sql injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Frequently asked questions
- What is CVE-2026-6991?
- A vulnerability was determined in colinhacks Zod up to 4.3.6. The impacted element is an unknown function of the file packages/zod/src/v4/core/regexes.ts of the component CUID Data Type Handler. Executing a manipulation can lead to sql injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
- How severe is CVE-2026-6991?
- CVE-2026-6991 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-6991 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-6991?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-6991 have an EU (EUVD) identifier?
- Yes. CVE-2026-6991 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25667.
- When was CVE-2026-6991 published?
- CVE-2026-6991 was published on 2026-04-25 and last updated on 2026-06-17.
References
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