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CVE-2019-1010266

Regular Expression Denial of Service (ReDoS) in lodash

6.5 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

3.04%Down 2.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 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 match using a regular expression. The fixed version is: 4.17.11.

Record
CVE-2019-1010266
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:N/I:N/A:P
Weakness
CWE-400, CWE-770
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2019-1010266
Weakness
CWE-400
Updated
2026-11-02
EUVDEUVD-2019-0610 No score

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.

Record
EUVD-2019-0610
Updated
2026-11-03
GitHub AdvisoriesGHSA-x5rq-j2xg-h7qm 6.5

Regular Expression Denial of Service (ReDoS) in lodash

lodash prior to 4.7.11 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: 4.7.11.

Record
GHSA-x5rq-j2xg-h7qm
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSVAZL-45159 6.5

CVE-2019-1010266 affecting package js-jquery 3.5.0-4

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.

Record
AZL-45159
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-05
OSV 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 match using a regular expression. The fixed version is: 4.17.11.

Record
CVE-2019-1010266
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 5 moreShow less
OSVDEBIAN-CVE-2019-1010266 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 match using a regular expression. The fixed version is: 4.17.11.

Record
DEBIAN-CVE-2019-1010266
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVGHSA-x5rq-j2xg-h7qm 6.5

Regular Expression Denial of Service (ReDoS) in lodash

lodash prior to 4.7.11 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: 4.7.11.

Record
GHSA-x5rq-j2xg-h7qm
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSVUBUNTU-CVE-2019-1010266 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 match using a regular expression. The fixed version is: 4.17.11.

Record
UBUNTU-CVE-2019-1010266
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVCLSA-2026-1784509823 No score

TuxCare security update for lodash (3 CVEs)

TuxCare rebuilt lodash to address 3 CVEs. Fixed in 4.17.4-tuxcare.2.

Record
CLSA-2026-1784509823
Updated
2026-11-02
OSVCLSA-2026-1785291646 No score

TuxCare security update for lodash (4 CVEs)

TuxCare rebuilt lodash to address 4 CVEs. Fixed in 4.17.5-tuxcare.3.

Record
CLSA-2026-1785291646
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
lodash
npm
 4.7.0 up to 4.17.11
4.17.11
lodash-es
npm
 4.7.0 up to 4.17.11
4.17.11
lodash-amd
npm
 4.7.0 up to 4.17.11
4.17.11
lodash-rails
RubyGems
 4.7.0 up to 4.17.11
4.17.11
js-jquery
Azure Linux:3
 through 3.5.0-4 None known
lodash
TuxCare:npm
 4.17.4-tuxcare.0 up to 4.17.4-tuxcare.2, plus listed versions
4.17.44.17.4-tuxcare.1
4.17.4-tuxcare.2
lodash
TuxCare:npm
 4.17.5-tuxcare.0 up to 4.17.5-tuxcare.3, plus listed versions
4.17.54.17.5-tuxcare.14.17.5-tuxcare.2
4.17.5-tuxcare.3
node-lodash
Debian:12
 before 4.17.11+dfsg-1
4.17.11+dfsg-1
node-lodash
Debian:13
 before 4.17.11+dfsg-1
4.17.11+dfsg-1
node-lodash
Debian:14
 before 4.17.11+dfsg-1
4.17.11+dfsg-1
lodash-rails
RubyGems
 4.7.0 up to 4.17.11, plus listed versions
4.11.24.12.04.13.14.14.14.15.0
Show 8 moreShow less
4.16.14.16.34.16.44.16.64.17.104.17.24.17.44.17.5
4.17.11
node-lodash
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
4.17.4+dfsg-14.17.4+dfsg-1ubuntu0.1~esm1
 None known

History

History
RecordedChangedSources
factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-1010266 is a medium vulnerability (CVSS 6.5) in Lodash, published July 17, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.04%, the 87th percentile. Fixed in lodash 4.17.11.

References

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