CVE-2025-32793

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable 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. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue.

Reserved 2025-04-10 | Published 2025-04-21 | Updated 2025-04-21 | Assigner GitHub_M

Problem types

CWE-319: Cleartext Transmission of Sensitive Information

Product status

>= v1.13.0, < v1.15.16
affected

>= v1.16.0, < v1.16.9
affected

>= v1.17.0, < v1.17.3
affected

References

github.com/...cilium/security/advisories/GHSA-5vxx-c285-pcq4

github.com/cilium/cilium/pull/38592

cve.org (CVE-2025-32793)

nvd.nist.gov (CVE-2025-32793)

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