Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2024-21542 is a medium-severity Path Traversal: '\..\filename' (CWE-29) vulnerability in Snyk (inferred from references). Its CVSS base score is 6.6 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 34% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
Versions of the Luigi package prior to 3.6.0 contain a Zip Slip vulnerability that permits arbitrary file writes during archive extraction. The flaw stems from missing destination path validation inside the _extract_packages_archive function, which is tracked under CWE-29 and CWE-22 and carries a CVSS 4.0 score of 6.6.
An unauthenticated network attacker can supply a malicious archive that, when processed by the affected function, writes attacker-controlled files to arbitrary locations on the host filesystem. Successful exploitation can alter system files or configuration data, producing a high integrity impact while leaving confidentiality and availability largely unaffected.
The maintainers addressed the issue in release 3.6.0, with the corrective change committed to the repository; users are advised to upgrade to that version. A publicly available proof-of-concept exists, and the current EPSS of 0.1421 has remained flat since disclosure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-0098
Vulnerability Data
Versions of the package luigi before 3.6.0 are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) due to improper destination file path validation in the _extract_packages_archive function.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V5.3.2
Mitigating Controls (NIST 800-53 r5) AI
Enforces the intended directory access authorizations that path traversal would otherwise bypass.
Input validation directly neutralizes the '\..\filename' sequence before pathname resolution occurs.
Least privilege reduces the impact of any unauthorized file access obtained via traversal.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.
Secure SDLC practices directly require input validation and path sanitization that block this traversal vector.
PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.