GHSA-5vxx-c285-pcq4

Source

https://github.com/advisories/GHSA-5vxx-c285-pcq4

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-5vxx-c285-pcq4/GHSA-5vxx-c285-pcq4.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-5vxx-c285-pcq4

Aliases

Related

Published

2025-04-21T16:17:49Z

Modified

2025-04-23T14:41:18Z

Severity

4.0 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N CVSS Calculator

Summary

In Cilium, packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters

Details

Impact

When using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium.

Patches

This issue has been patched in https://github.com/cilium/cilium/pull/38592.

This issue affects:

Cilium v1.15 between v1.15.0 and v1.15.15 inclusive
Cilium v1.16 between v1.16.0 and v1.16.8 inclusive
Cilium v1.17 between v1.17.0 and v1.17.2 inclusive

This issue is fixed in:

Cilium v1.15.16
Cilium v1.16.9
Cilium v1.17.3

Workarounds

There is no workaround to this issue.

Acknowledgements

The Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to @gandro and @pippolo84 for reporting this issue and to @julianwiedmann for the patch.

For more information

If you think you have found a vulnerability affecting Cilium, we strongly encourage you to report it to our security mailing list at security@cilium.io. This is a private mailing list for the Cilium security team, and your report will be treated as top priority.

Database specific

{
    "nvd_published_at": "2025-04-21T16:15:54Z",
    "cwe_ids": [
        "CWE-319",
        "CWE-362"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-04-21T16:17:49Z"
}

References

Affected packages

Go / github.com/cilium/cilium

Package

Name: github.com/cilium/cilium; View open source insights on deps.dev
Purl: pkg:golang/github.com/cilium/cilium

Affected ranges

Type: SEMVER
Events: Introduced

1.13.0

Fixed

1.15.16

Go / github.com/cilium/cilium

Package

Name: github.com/cilium/cilium; View open source insights on deps.dev
Purl: pkg:golang/github.com/cilium/cilium

Affected ranges

Type: SEMVER
Events: Introduced

1.16.0

Fixed

1.16.9

Go / github.com/cilium/cilium

Package

Name: github.com/cilium/cilium; View open source insights on deps.dev
Purl: pkg:golang/github.com/cilium/cilium

Affected ranges

Type: SEMVER
Events: Introduced

1.17.0

Fixed

1.17.3