PT-2025-27148 · Lychee · Lychee

Baranteyin1 · Published 2025-06-27 · Updated 2025-06-27 · CVE-2025-53018

Positive Technologies (AI Summary)

CVSS v3.1

3.0

Low

Base vector

AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions: Lychee versions prior to 6.6.13

Description: A critical Server-Side Request Forgery (SSRF) issue exists in the "/api/v2/Photo::fromUrl" endpoint, allowing an attacker to instruct the application's backend to make HTTP requests to any URL they choose. This enables access to internal network resources, such as localhost services or cloud-provider metadata endpoints. The endpoint takes a URL from the user and calls it server-side via fopen() without any safeguards, including IP address validation, allow-list, timeout, or size restrictions. Attackers can use this flaw to perform internal port scans or retrieve sensitive cloud metadata.

Recommendations: For versions prior to 6.6.13, update to version 6.6.13 to resolve the issue. As a temporary workaround, consider restricting access to the "/api/v2/Photo::fromUrl" endpoint until the patch is applied. Avoid using the URL variable in the affected API endpoint until the issue is resolved.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2025-53018

GHSA-CPGW-WGF3-XC6V

Affected Products

Lychee

References · 7

• 🔥 https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-cpgw-wgf3-xc6v · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53018.json · Exploit
• https://osv.dev/vulnerability/CVE-2025-53018 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53018 · Security Note
• https://github.com/LycheeOrg/Lychee/commit/9dc162eefe56ce185ac1d59da42ee557933d914d · Note
• https://t.me/cvenotify/126877 · Telegram Post
• https://twitter.com/CVEnew/status/1938671251637313986 · Twitter Post