Vulnerability DatabaseCVE-2026-39087
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CVE-2026-39087
Published:April 23, 2026
Updated:July 21, 2026
ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.
Affected Packages
https://github.com/binwiederhier/ntfy.git (GITHUB):
Affected version(s) >=v0.0.1 <v2.22.0
Fix Suggestion:
Update to version v2.22.0
github.com/binwiederhier/ntfy (GO):
Affected version(s) >=v0.0.1 <v2.22.0
Fix Suggestion:
Update to version v2.22.0
heckel.io/ntfy/v2 (GO):
Affected version(s) >=v2.7.1-0.20231119214204-2525ef71a9b8 <v2.22.0
Fix Suggestion:
Update to version v2.22.0
Related Resources (8)
https://github.com/binwiederhier/ntfy
https://github.com/binwiederhier/ntfy/releases/tag/v2.22.0
https://nvd.nist.gov/vuln/detail/CVE-2026-39087
http://ntfysh.com
https://ntfy.sh
https://gist.github.com/MightyNawaf/5d41d6e8ead16e217f86b016002ecae5
https://github.com/advisories/GHSA-pqhx-w72w-m393
http://ntfy.com
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Control of Generation of Code ('Code Injection')
CWE-94
Regular Expression without Anchors
CWE-777
EPSS
Base Score:
0.27