CVE-2019-1010266: lodash prior to 4.17.11 is affected by: CWE-400: Uncontrolled Resource Consumption

This month

MEDIUM 6.5UPGRADE

CVE-2019-1010266 is a medium-severity flaw (CVSS 6.5) affecting lodash. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Weakness	CWE-400, CWE-770
Published	2019-07-17
Last modified	2026-06-17

Publisher (CNA): DWF · Vendor: lodash

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

Am I affected?

Timeline

2019-07-17 21:15 UTCPublished CVE record published
2026-06-17 02:09 UTCUpdated Record last modified

lodash lodash UPGRADE

Affected: < 4.17.11

Fixed in: 4.17.11

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls lodash

2. UPGRADE to 4.17.11

npm install lodash@">=4.17.11"

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-2019-1010266?

lodash: upgrade to 4.17.11. Exact commands for each OS are on this page.

Is CVE-2019-1010266 being exploited?

CVE-2019-1010266 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-2019-1010266 affect?

CVE-2019-1010266 affects lodash. Severity is medium (CVSS 6.5). 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 m

How urgent is CVE-2019-1010266?

Priority 50/100. Public exploit reference

Software pages

Lodash vulnerabilities

Related CVEs

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CVE-2021-23337 HIGH 7.2 UPGRADE DOWNGRADE Lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.
CVE-2020-28500 MEDIUM 5.3 UPGRADE DOWNGRADE Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumb
CVE-2020-8203 HIGH 7.4 UPGRADE DOWNGRADE Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20.
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References

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