BlackTreeCVE IntelligenceUnknown · Lodash
Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Debian trixietrixie · source | node-lodash | Vendor fix publishedDebian records a fixed source-package version for this release. | 4.17.21+dfsg+~cs8.31.173-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian bookwormbookworm · source | node-lodash | Vendor fix publishedDebian records a fixed source-package version for this release. | 4.17.21+dfsg+~cs8.31.173-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian forkyforky · source | node-lodash | Vendor fix publishedDebian records a fixed source-package version for this release. | 4.17.21+dfsg+~cs8.31.173-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian sidsid · source | node-lodash | Vendor fix publishedDebian records a fixed source-package version for this release. | 4.17.21+dfsg+~cs8.31.173-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| RubyGemslodash-rails | ECOSYSTEM: introduced 4.0.0; fixed 4.17.21 | 4.17.21 | OSV record ↗aggregator derived · 29 Sep 2025 |
| npmlodash | >= 4.0.0, < 4.17.21 | 4.17.21 | GitHub advisory ↗github reviewed aggregator · 29 Sep 2025 |
| npmlodash | SEMVER: introduced 4.0.0; fixed 4.17.21 | 4.17.21 | OSV record ↗aggregator derived · 29 Sep 2025 |
| npmlodash-es | >= 4.0.0, < 4.17.21 | 4.17.21 | GitHub advisory ↗github reviewed aggregator · 29 Sep 2025 |
| npmlodash-es | SEMVER: introduced 4.0.0; fixed 4.17.21 | 4.17.21 | OSV record ↗aggregator derived · 29 Sep 2025 |
| npmlodash.trim | >= 4.0.0, <= 4.5.1 | Not stated | GitHub advisory ↗github reviewed aggregator · 29 Sep 2025 |
| npmlodash.trim | SEMVER: introduced 4.0.0; last affected 4.5.1 | Not stated | OSV record ↗aggregator derived · 29 Sep 2025 |
| npmlodash.trimend | >= 4.0.0, <= 4.5.1 | Not stated | GitHub advisory ↗github reviewed aggregator · 29 Sep 2025 |
| npmlodash.trimend | SEMVER: introduced 4.0.0; last affected 4.5.1 | Not stated | OSV record ↗aggregator derived · 29 Sep 2025 |
| rubygemslodash-rails | >= 4.0.0, < 4.17.21 | 4.17.21 | GitHub advisory ↗github reviewed aggregator · 29 Sep 2025 |
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
The vendor explicitly identifies these products as affected by this CVE.
Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Fix availability varies by productLodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.
Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.
The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.
Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.
The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:PCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
Operational remediation based on structured source evidence.
Published 15 Feb 2021 · Last source change 16 Sept 2024, 22:15 UTC · CWE not yet assigned
Missing structured fields: CWE classification, affected product. Missing data is not evidence of low risk; review the primary advisory.
No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.