# github.com/slackhq/nebula (Go) vulnerabilities

2 known vulnerabilities (1 high, 1 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://pkg.go.dev/github.com/slackhq/nebula

## Advisories (2)

### [CVE-2026-25793](https://cve.now/CVE-2026-25793): Nebula Has Possible Blocklist Bypass via ECDSA Signature Malleability

- Severity: High 7.6
- Published: Feb 6, 2026
- Affected: from 1.7.0, fixed in 1.10.3.

### [CVE-2025-62820](https://cve.now/CVE-2025-62820): Slack Nebula before 1.9.7 mishandles CIDR in some configurations and thus accepts arbitrary source IP addresses within the Nebula network.

- Severity: Medium 4.9
- Published: Oct 23, 2025
- Affected: from 1.9.4, fixed in 1.9.7.

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