SecuriTricks - CVE-2025-11563

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.

Product(s) Impacted

Vendor	Product	Versions
Curl	Wcurl	*
Haxx	Curl	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	curl	wcurl	/	/	/	/	/	/	/	/
a	haxx	curl	/	/	/	/	/	/	/	/

References

https://curl.se/docs/CVE-2025-11563.html

https://curl.se/docs/CVE-2025-11563.json

http://www.openwall.com/lists/oss-security/2025/11/04/1

https://lists.debian.org/debian-release/2025/11/msg00504.html

CVSS Score

4.6 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

View Vector String

Timeline

Published: Feb. 25, 2026, 8:16 a.m.
Last Modified: Feb. 26, 2026, 8:06 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

2499f714-1537-4658-8207-48ae4bb9eae9

CVE-2025-11563