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Fencer Vulns
medium 4.6

CVE-2025-11563 json

wcurl path traversal with percent-encoded slashes

published 2026-02-25 8 mo ago modified 2026-07-25 3 mo ago also EUVD-2025-208109 , GHSA-6xq2-fm6w-mxfm , JLSEC-2026-425

cvss
4.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

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.

Patch / fix

  • julia CURL_jll 8.17.0+0
  • julia LibCURL_jll 8.17.0+0
  • curl wcurl 8.18.0
  • haxx wcurl 8.18.0
  • curl Debian 13 8.14.1-2+deb13u2
  • curl Debian 14 8.17.0-2

debian advisories DEBIAN-CVE-2025-11563

  • curl Ubuntu 25.10 8.14.1-2ubuntu1.1

ubuntu advisories UBUNTU-CVE-2025-11563

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • curl Linux Micro 6.1 8.14.1-slfo.1.1_3.1
  • curl Linux Micro 6.0 8.14.1-2.1
  • curl SLE Micro 5.5, SLE Micro 5.4, SLE Micro 5.3 8.14.1-150400.5.72.1
  • curl SLE Module for Basesystem 15 SP7 8.14.1-150700.7.5.1
  • curl SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 8.14.1-160000.3.1
  • curl-mini SLES for SAP applications 16.0, SLES 16.0 8.14.1-160000.3.1
  • curl SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 8.14.1-150600.4.31.1
  • curl SLE Micro 5.2 8.14.1-150200.4.94.1

suse advisories SUSE-SU-2025:21206-1SUSE-SU-2025:21198-1SUSE-SU-2025:4309-1SUSE-SU-2025:4300-1SUSE-SU-2025:21077-1SUSE-SU-2025:21145-1

  • curl openSUSE Leap 16.0 8.14.1-160000.3.1
  • curl openSUSE Tumbleweed 8.17.0-1.1

opensuse advisories openSUSE-SU-2025:20090-1openSUSE-SU-2025:15757-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-11563 updated cvss 6.5

wcurl: wcurl: Arbitrary file placement via crafted URLs

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
8 mo ago

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CNA 3.1 4.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
OSV 3.1 4.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
julia CURL_jll
>=8.16.0+0, <8.17.0+0
8.17.0+0
julia LibCURL_jll
>=8.15.0+0, <8.17.0+0
8.17.0+0

Affected products

  • curl curl

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.