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2 vulnerabilities found for lodash.template by lodash
CVE-2026-4800 (GCVE-0-2026-4800)
Vulnerability from nvd – Published: 2026-03-31 19:25 – Updated: 2026-03-31 20:37
VLAI?
Title
lodash vulnerable to Code Injection via `_.template` imports key names
Summary
Impact:
The fix for CVE-2021-23337 (https://github.com/advisories/GHSA-35jh-r3h4-6jhm) added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink.
When an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time.
Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function().
Patches:
Users should upgrade to version 4.18.0.
Workarounds:
Do not pass untrusted input as key names in options.imports. Only use developer-controlled, static key names.
Severity ?
8.1 (High)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| lodash | lodash |
Affected:
4.0.0 , < 4.18.0
(semver)
Unaffected: 4.18.0 (semver) |
|||||||||||||||||
|
|||||||||||||||||||
Credits
dolevmiz1
bugbunny-research
M0nd0R
UlisesGascon
falsyvalues
jonchurch
threalwinky
jdalton
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CVE-2026-4800 (GCVE-0-2026-4800)
Vulnerability from cvelistv5 – Published: 2026-03-31 19:25 – Updated: 2026-03-31 20:37
VLAI?
Title
lodash vulnerable to Code Injection via `_.template` imports key names
Summary
Impact:
The fix for CVE-2021-23337 (https://github.com/advisories/GHSA-35jh-r3h4-6jhm) added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink.
When an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time.
Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function().
Patches:
Users should upgrade to version 4.18.0.
Workarounds:
Do not pass untrusted input as key names in options.imports. Only use developer-controlled, static key names.
Severity ?
8.1 (High)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| lodash | lodash |
Affected:
4.0.0 , < 4.18.0
(semver)
Unaffected: 4.18.0 (semver) |
|||||||||||||||||
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Credits
dolevmiz1
bugbunny-research
M0nd0R
UlisesGascon
falsyvalues
jonchurch
threalwinky
jdalton
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