Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| wummel | patool | 4.1.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | patool | No fix yet | — |
| Debian 13 | patool | No fix yet | — |
| Debian 12 | patool | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | patool | No fix yet | — |
| Ubuntu 26.04 LTS | patool | No fix yet | — |
| Ubuntu 24.04 LTS | patool | No fix yet | — |
| Ubuntu 22.04 LTS | patool | No fix yet | — |
| Ubuntu 20.04 LTS | patool | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | patool | No fix yet | — |
| Ubuntu 16.04 LTS | patool | No fix yet | — |
References
- VDB-433008 | wummel patool Gzip Extraction fileutil.py extract_gzip symlink vdb-entry technical-description
- VDB-433008 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-124584 | CVE Analysis and Report third-party-advisory
- Submit #1038992 | wummel patool 4.1.0 Improper Link Resolution (CWE-59) third-party-advisory
- https://github.com/wummel/patool/security/advisories/GHSA-p24m-wf3f-3mf5 broken-link
- https://github.com/wummel/patool/ product