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Open-source package vulnerability · Composer (PHP)

CVE-2026-50887: shlink has a Server-Side Request Forgery issue

criticalCVSS 3.1 9.1GHSA-p85r-x2wj-mxqj

A Server-Side Request Forgery (SSRF) in the automatic short URL title resolution component of shlink v5.0.1 allows attackers to scan internal resources via supplying a crafted longUrl.

Published Jun 15, 2026 · Updated Aug 27, 2026

Affected packages

shlinkio/shlink

Ecosystem
Composer (PHP)
Affected
<= 5.0.1
Fixed in
No patched version yet
Check
composer show shlinkio/shlink

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

A Server-Side Request Forgery (SSRF) in the automatic short URL title resolution component of shlink v5.0.1 allows attackers to scan internal resources via supplying a crafted longUrl.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology