Critical, CVSS 9.8GoPublished
ntfy.sh allows a remote attacker to execute arbitrary code via the parseActions function
CVE-2026-39087 · GHSA-pqhx-w72w-m393
- Affected
- Go heckel.io/ntfy/v2 < 2.22.0
- Fixed in
- 2.22.0· Vendor fix available
- Issue
- An issue in Ntfy ntfy.sh before v.2.22.0 allows a remote attacker to execute arbitrary code via the parseActions function.
Recommended action: Upgrade to 2.22.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.