# CVE-2026-124584: wummel patool Gzip Extraction fileutil.py extract_gzip symlink

Status: published. Published: 2026-11-09. Updated: 2026-11-09.

A vulnerability has been found in wummel patool 4.1.0. This vulnerability affects the function extract_gzip of the file patoolib/fileutil.py of the component Gzip Extraction Handler. The manipulation leads to symlink following. Local access is required to approach this attack. The researcher claims to have submitted a GHSA on the repository of the project.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- wummel / patool: 4.1.0 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 4.8 (medium); CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X; source: CNA: VulDB

- CVSS 3.1: 4.4 (medium); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:C; source: CNA: VulDB

- CVSS 3.0: 4.4 (medium); CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:C; source: CNA: VulDB

- CVSS 2.0: 3.2 (low); AV:L/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:ND/RC:C; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-61, CWE-59

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://vuldb.com/vuln/433008 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/433008/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-124584 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1038992 (CNA: VulDB; third-party-advisory)

- https://github.com/wummel/patool/security/advisories/GHSA-p24m-wf3f-3mf5 (CNA: VulDB; broken-link)

- https://github.com/wummel/patool/ (CNA: VulDB; product)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-124584; retrieved 2026-11-09; source updated 2026-11-09

Revision: f08faec609fc9a5153c5e052c196177a8dcce4af2f7c76deab979698eaca987d

Canonical: https://y2.dev/cve/CVE-2026-124584

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.