CVE-2026-50888 Koillection has an authenticated Server-Side Request Forgery issue
Authenticated attackers can scan internal resources via SSRF in Koillection's custom scraper, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-50888?
CVE-2026-50888 is a high-severity server-side request forgery vulnerability in n/a, published on 15 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An authenticated Server-Side Request Forgery (SSRF) in the custom scraper subsystem component of Benjamin Jonard Koillection v1.8.0 allows attackers to scan internal resources via supplying a crafted URL.
Weakness: CWE-918
Which versions are affected by CVE-2026-50888?
2 open source packages ship an affected version, including koillection/koillection.
| Package | Affected | Fixed in |
|---|---|---|
koillection/koillection Packagist | All versions | 1.8.4 |
koillection/koillection Packagist | All versions | 1.8.4 |
How do I fix CVE-2026-50888?
Upgrade koillection/koillection to 1.8.4 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-50888 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50888 exists.
Sources
Also known as GHSA-gmxh-hjfv-qc2w.