Description
Sigil before 0.9.16 is vulnerable to a directory traversal, allowing attackers to write arbitrary files via a ../ (dot dot slash) in a ZIP archive entry that is mishandled during extraction.
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 | sigil | 0.9.16+dfsg-1 | — |
| Debian 13 | sigil | 0.9.16+dfsg-1 | — |
| Debian 12 | sigil | 0.9.16+dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | sigil | 0.9.9+dfsg-1ubuntu0.1~esm1 | USN-4085-1 |
| Ubuntu 16.04 LTS | sigil | 0.9.5+dfsg-0ubuntu1+esm1 | USN-4085-1 |
Advisories 1
- USN-4085-1 Sigil vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
References
- https://github.com/Sigil-Ebook/flightcrew/issues/52#issuecomment-505967936
- https://github.com/Sigil-Ebook/flightcrew/issues/52#issuecomment-505997355
- https://github.com/Sigil-Ebook/Sigil/commit/369eebe936e4a8c83cc54662a3412ce8bef189e4
- https://github.com/Sigil-Ebook/Sigil/commit/04e2f280cc4a0766bedcc7b9eb56449ceecc2ad4
- https://github.com/Sigil-Ebook/Sigil/commit/0979ba8d10c96ebca330715bfd4494ea0e019a8f
- https://github.com/Sigil-Ebook/Sigil/releases/tag/0.9.16
- https://github.com/Sigil-Ebook/Sigil/compare/ea7f27d...5b867e5
- USN-4085-1 vendor-advisory
- https://salvatoresecurity.com/zip-slip-in-sigil-cve-2019-14452/