How severe is CVE-2019-1010266?

CVE-2019-1010266 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-1010266 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1010266?

CVE-2019-1010266 affects Lodash. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-1010266?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-1010266 published?

CVE-2019-1010266 was published on 2019-07-17 and last updated on 2026-06-17.

CVE-2019-1010266

CVE-2019-1010266 is a medium-severity vulnerability in Lodash with a CVSS 3.x base score of 6.5. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Lodash
Published: 2019-07-17
Last modified: 2026-06-17

Description

lodash prior to 4.17.11 is affected by: CWE-400: Uncontrolled Resource Consumption. The impact is: Denial of service. The component is: Date handler. The attack vector is: Attacker provides very long strings, which the library attempts to match using a regular expression. The fixed version is: 4.17.11.

Frequently asked questions

What is CVE-2019-1010266?: lodash prior to 4.17.11 is affected by: CWE-400: Uncontrolled Resource Consumption. The impact is: Denial of service. The component is: Date handler. The attack vector is: Attacker provides very long strings, which the library attempts to match using a regular expression. The fixed version is: 4.17.11.
How severe is CVE-2019-1010266?: CVE-2019-1010266 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-1010266 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1010266?: CVE-2019-1010266 affects Lodash. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-1010266?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-1010266 published?: CVE-2019-1010266 was published on 2019-07-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lodash:lodash:*:*:*:*:*:node.js:*:*

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