# CVE-2025-11563: wcurl path traversal with percent-encoded slashes

> Attackers can trick wcurl into saving files outside the current directory using percent-encoded slashes, potentially overwriting unintended files.

- **Severity:** Medium 4.6 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 25 Feb 2026
- **Updated:** 25 Feb 2026
- **Also known as:** BELL-CVE-2025-11563, DEBIAN-CVE-2025-11563, ECHO-f069-94fc-237e, GHSA-6xq2-fm6w-mxfm, JLSEC-2026-425, SUSE-SU-2025:21198-1, SUSE-SU-2025:21206-1, SUSE-SU-2025:4180-1, SUSE-SU-2025:4236-1, SUSE-SU-2025:4300-1, SUSE-SU-2025:4309-1, UBUNTU-CVE-2025-11563

## What is CVE-2025-11563?

CVE-2025-11563 is a medium-severity path traversal vulnerability in curl, published on 25 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-11563?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `curl` | SUSE:Linux Enterprise Micro 5.2 | All versions | 8.14.1-150200.4.94.1 |
| `curl` | SUSE:Linux Enterprise Micro 5.3 | All versions | 8.14.1-150400.5.72.1 |
| `curl` | SUSE:Linux Enterprise Micro 5.4 | All versions | 8.14.1-150400.5.72.1 |
| `curl` | SUSE:Linux Enterprise Micro 5.5 | All versions | 8.14.1-150400.5.72.1 |
| `curl` | SUSE:Linux Enterprise Module for Basesystem 15 SP6 | All versions | 8.14.1-150600.4.31.1 |
| `curl` | SUSE:Linux Enterprise Module for Basesystem 15 SP7 | All versions | 8.14.1-150700.7.5.1 |
| `curl` | SUSE:Linux Micro 6.0 | All versions | 8.14.1-2.1 |
| `curl` | SUSE:Linux Micro 6.1 | All versions | 8.14.1-slfo.1.1_3.1 |
| `curl` | openSUSE:Leap 15.6 | All versions | 8.14.1-150600.4.31.1 |

Products: Curl Wcurl.

## How do I fix CVE-2025-11563?

Apply the vendor's patch.

## Is CVE-2025-11563 being exploited?

There is no known exploitation of CVE-2025-11563 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-11563 and fix it if it is affected.

What it is: CVE-2025-11563 is a medium-severity path traversal vulnerability in curl, published on 25 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-11563 in the wild and no public exploit code.

Affected product: curl. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-11563/ (Markdown: https://insights.sbomify.com/CVE-2025-11563/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-11563
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-11563
- OSV: https://osv.dev/vulnerability/CVE-2025-11563

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-11563/
Summaries are generated and may contain mistakes; the official description above is the record.