Description
SharpZipLib before 1.0 RC1 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SharpZipLib | SharpZipLib | < 1.0 RC1 | — |
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 | mono | 5.18.0.240+dfsg-1 | — |
| Debian 13 | mono | 5.18.0.240+dfsg-1 | — |
| Debian 12 | mono | 5.18.0.240+dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mono +1 | No fix yet | — |
| Ubuntu 16.04 LTS | mono +1 | No fix yet | — |
| Ubuntu 14.04 LTS | mono | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | SharpZipLib | < 1.0.0-rc1 | 1.0.0-rc1 | GHSA-cqj4-m2pc-v9m5 |
Advisories 3
- ICSA-26-125-01 Hitachi Energy PCM600 (Update A) CISA ICS & IT advisories · Oct 29, 2026
- ICSA-26-120-02 ABB PCM600 CISA ICS & IT advisories · May 13, 2026
- 2NGA002813 PCM600 SharpZip library vulnerability ABB PSIRT · Nov 3, 2025