CVE-2019-1010266

Exp

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.

Published: 2019-07-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2019-1010266 is rated High Exploit Risk (73.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.08%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.86% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-1010266

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-1010266

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.21% 3.08% +2.86%
2 2026-03-04 0.10% 0.21% +0.11%
3 2026-03-01 0.10%

Full EPSS history (42 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-1010266

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
8.0 2.9 [email protected]

Weakness enumeration for CVE-2019-1010266

GitHub Security Advisory for CVE-2019-1010266

GHSA-x5rq-j2xg-h7qm · Severity: medium · Ecosystem: npm — Regular Expression Denial of Service (ReDoS) in lodash

OS Trackers for CVE-2019-1010266

vendor priority summary link
debian unimportant CVE-2019-1010266 unimportant priority: Debian including 1 source packages (node-lodash), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-1010266
redhat low https://access.redhat.com/security/cve/CVE-2019-1010266
ubuntu medium CVE-2019-1010266 medium priority: Ubuntu including 1 source packages (node-lodash), 18 status rows across 18 suites (bionic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 15, DNE 1, needed 1, released 1. https://ubuntu.com/security/CVE-2019-1010266

Affected software / configurations for CVE-2019-1010266

Vendor Product Version Raw CPE
lodash lodash < 4.17.11 cpe:2.3:a:lodash:lodash:*:*:*:*:*:node.js:*:*

References for CVE-2019-1010266

URL Tags
https://github.com/lodash/lodash/issues/3359 Issue Tracking Third Party Advisory
https://github.com/lodash/lodash/wiki/Changelog Release Notes Third Party Advisory
https://security.netapp.com/advisory/ntap-20190919-0004/ Third Party Advisory
https://snyk.io/vuln/SNYK-JS-LODASH-73639 Exploit Third Party Advisory
cvelogic Threat Intelligence