CVE-2026-50887

shlink has a Server-Side Request Forgery issue

9.1 Critical

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.29%Up 0.1 points since Jun 16, 2026

What each source reports

CVE List Score used 9.1

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.

Record: CVE-2026-50887
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-918
Updated: 2026-11-02

EUVDEUVD-2026-36785 9.1

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.

Record: EUVD-2026-36785
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-p85r-x2wj-mxqj 9.1

shlink has a Server-Side Request Forgery issue

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.

Record: GHSA-p85r-x2wj-mxqj
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-918
Updated: 2026-11-02

NVD 9.1

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.

Record: CVE-2026-50887
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-918
Updated: 2026-11-02

OSVGHSA-p85r-x2wj-mxqj 9.1

shlink has a Server-Side Request Forgery issue

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.

Record: GHSA-p85r-x2wj-mxqj
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-918
Updated: 2026-11-02

Affected packages

Affected packages
Package	Affected	Fixed
`shlinkio/shlink` Packagist	through 5.0.1	None known
`shlinkio/shlink` Packagist	through 5.0.1, plus listed versions v0.1.0v0.2.0v1.0.0v1.1.0v1.10.0 Show 45 moreShow less v1.10.1v1.10.2v1.11.0v1.12.0v1.13.0v1.13.1v1.13.2v1.14.0v1.14.1v1.15.0v1.15.1v1.16.0v1.16.1v1.16.2v1.16.3v1.17.0v1.18.0v1.18.1v1.19.0v1.19.0-beta.1v1.2.0v1.2.1v1.2.2v1.20.0v1.20.1v1.20.2v1.20.3v1.21.0v1.21.1v1.21.2v1.3.0v1.3.1v1.4.0v1.5.0v1.6.0v1.6.1v1.6.2v1.7.0v1.7.1v1.7.2v1.8.0v1.8.1v1.9.0v1.9.1v2.0.0	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-50887 is a critical vulnerability (CVSS 9.1) in shlinkio/shlink, published June 15, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. No source names a fixed version.

References

This page doesn't list everything

Left out here: 101 versions. The JSON record has them.