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Vulnerability IntelligenceCVE-2026-39087

CVE-2026-39087

CRITICAL9.8

ntfy before 2

Published Apr 23, 2026

Modified 2 weeks ago

Details

ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.

References

https://gist.github.com/MightyNawaf/5d41d6e8ead16e217f86b016002ecae5

https://github.com/binwiederhier/ntfy/releases/tag/v2.22.0

https://ntfy.sh

https://www.cve.org/CVERecord?id=CVE-2026-39087

CVSS Analysis

CVSS v3.1

6.4

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

ChangedS:C

Impact

Confidentiality

LowC:L

Integrity

LowI:L

Availability

NoneA:N

6.4/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedApr 23, 2026

ModifiedJul 5, 2026

CVE-2026-39087 | Mondoo Vulnerability Intelligence