Description
URLs containing percent-encoded slashes (`/` or `\`) can trick wcurl into
saving the output file outside of the current directory without the user
explicitly asking for it.
This flaw only affects the wcurl command line tool.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| curl | curl | 8.17.0 – ≤ 8.17.0, 8.16.0 – ≤ 8.16.0, 8.15.0 – ≤ 8.15.0, 8.14.1 – ≤ 8.14.1, 8.14.0 – ≤ 8.14.0 | — |
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 | curl | 8.17.0-2 | — |
| Debian 13 | curl | 8.14.1-2+deb13u2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | curl | 8.14.1-2ubuntu1.1 | USN-8062-1 |
| Ubuntu 24.04 LTS | curl | 8.5.0-2ubuntu10.7 | USN-8062-1 |
| Ubuntu 22.04 LTS | curl | 7.81.0-1ubuntu1.22 | USN-8062-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | curl | 8.14.1-150700.7.5.1 | SUSE-SU-2025:4300-1 |
| SLES 15 SP6 | curl | 8.14.1-150600.4.31.1 | SUSE-SU-2025:4236-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | curl +1 | 8.14.1-160000.3.1 | SUSE-SU-2025:21145-1 |
| SLES 16.0 | curl +1 | 8.14.1-160000.3.1 | SUSE-SU-2025:21145-1 |
| SLE Micro 6.2 | curl | 8.14.1-160000.3.1 | SUSE-SU-2025:21077-1 |
| SLE Micro 6.1 | curl | 8.14.1-slfo.1.1_3.1 | SUSE-SU-2025:21206-1 |
| SLE Micro 6.0 | curl | 8.14.1-2.1 | SUSE-SU-2025:21198-1 |
| SLE Micro 5.5 | curl | 8.14.1-150400.5.72.1 | SUSE-SU-2025:4309-1 |
| SLE Micro 5.4 | curl | 8.14.1-150400.5.72.1 | SUSE-SU-2025:4309-1 |
| SLE Micro 5.3 | curl | 8.14.1-150400.5.72.1 | SUSE-SU-2025:4309-1 |
| SLE Micro 5.2 | curl | 8.14.1-150200.4.94.1 | SUSE-SU-2025:4180-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 8.17.0-1.1 | openSUSE-SU-2025:15757-1 |
| openSUSE Leap 16.0 | curl | 8.14.1-160000.3.1 | openSUSE-SU-2025:20090-1 |
| openSUSE Leap 15.6 | curl | 8.14.1-150600.4.31.1 | SUSE-SU-2025:4236-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | curl +4 | 8.11.1-4.amzn2023.0.3 | ALAS2023-2025-1317 |
| Amazon Linux 2 | curl +2 | 8.3.0-1.amzn2.0.11 | ALAS2-2025-3088 |
Advisories 17
- WID-SEC-2025-2485 cURL (wcurl): Schwachstelle ermöglicht Manipulation von Dateien BSI CERT-Bund (WID) · Nov 11, 2026
- WID-SEC-2026-2189 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- WID-SEC-2026-1730 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Jul 16, 2026
- WID-SEC-2026-0778 Dell Secure Connect Gateway Policy Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- USN-8062-1 curl vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- openSUSE-SU-2025:20090-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21206-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21145-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21077-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21198-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4180-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4236-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4300-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:15757-1 curl-8.17.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2025-1317 Moderate: curl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Dec 8, 2025
- ALAS2-2025-3088 Moderate: curl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 8, 2025
- SUSE-SU-2025:4309-1 Security update for curl SUSE / openSUSE Security Updates · Nov 29, 2025