slackhq/nebula

slackhq/nebula

Releases27

Frequency2 months 3 weeks

Last Release 4 months ago

Stars17.4K

A scalable overlay networking tool with a focus on performance, simplicity and security

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CVE History

CVE	Published	CVSS v3	CVSS v2
CVE-2026-25793 ↗	Feb 6, 2026Friday, 6 February 2026, 23:15	8.1 HIGH	—
Nebula is a scalable overlay networking tool. In versions from 1.7.0 to 1.10.2, when using P256 certificates (which is not the default configuration), it is possible to evade a blocklist entry created against the fingerprint of a certificate by using ECDSA Signature Malleability to use a copy of the certificate with a different fingerprint. This issue has been patched in version 1.10.3.
CVE-2025-62820 ↗	Oct 23, 2025Thursday, 23 October 2025, 04:18	4.9 MEDIUM	—
Slack Nebula before 1.9.7 mishandles CIDR in some configurations and thus accepts arbitrary source IP addresses within the Nebula network.