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.
- CVSS 3.1
- 4.9
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)
- CWE
- CWE-420
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-x6fh-7qmf-69xh | Go | github.com/slackhq/nebula | >=1.9.4 <1.9.7 | 1.9.7 |
| GO-2025-4068 | Go | github.com/slackhq/nebula | >=1.9.4 <1.9.7 | 1.9.7 |