CVE-2026-33537
Medium
Description
Lychee is a free, open-source photo-management tool. The patch introduced for GHSA-cpgw-wgf3-xc6v (SSRF via `Photo::fromUrl`) contains an incomplete IP validation check that fails to block loopback addresses and link-local addresses. Prior to version 7.5.1, an authenticated user can still reach internal services using direct IP addresses, bypassing all four protection configuration settings even when they are set to their secure defaults. Version 7.5.1 contains a fix for the issue.
SeverityMedium
CVSS5.0
Exploit probability—
Product
Lychee
PublishedMar 26, 2026
First seenMar 26, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- lycheeorg lychee7.5.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lycheeorg lychee | v < 7.5.1 | 7.5.1 |
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