Description
ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ntfy | ntfy | < 2.22.0 | 2.22.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ntfy | No fix yet | — |
| Ubuntu 25.10 | ntfy | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | ntfy | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | heckel.io/ntfy | all versions | — | GO-2026-5551 |
| Go | heckel.io/ntfy/v2 | < 2.22.0 | 2.22.0 | GHSA-pqhx-w72w-m393 |
Advisories 1
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026