{"id":"CVE-2025-32793","state":"PUBLISHED","title":"Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters","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.","publishedAt":"2025-04-21T15:34:14.315Z","updatedAt":"2025-04-21T15:48:55.214Z","severity":{"score":4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["cilium cilium"],"affected":[{"vendor":"cilium","product":"cilium","versions":[{"version":">= v1.13.0, < v1.15.16","status":"affected"},{"version":">= v1.16.0, < v1.16.9","status":"affected"},{"version":">= v1.17.0, < v1.17.3","status":"affected"}]}],"references":["https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4","https://github.com/cilium/cilium/pull/38592"],"weaknesses":["CWE-319"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/32xxx/CVE-2025-32793.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-32793","state":"PUBLISHED","datePublished":"2025-04-21T15:34:14.315Z","dateUpdated":"2025-04-21T15:48:55.214Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-04-10T12:51:12.281Z"},"containers":{"cna":{"title":"Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"cilium","product":"cilium","versions":[{"version":">= v1.13.0, < v1.15.16","status":"affected"},{"version":">= v1.16.0, < v1.16.9","status":"affected"},{"version":">= v1.17.0, < v1.17.3","status":"affected"}]}],"references":[{"url":"https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4","name":"https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/cilium/cilium/pull/38592","name":"https://github.com/cilium/cilium/pull/38592","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-319","lang":"en","description":"CWE-319: Cleartext Transmission of Sensitive Information","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-04-21T15:34:14.315Z"},"source":{"advisory":"GHSA-5vxx-c285-pcq4","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-21T15:48:39.310786Z","id":"CVE-2025-32793","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-21T15:48:55.214Z"}}]}}}