{"id":"CVE-2026-40972","state":"PUBLISHED","title":"An attacker on the same network as the remote application may be able to utilize a timing attack to discover information about the remote secret. In extreme circumstances this coul","description":"An attacker on the same network as the remote application may be able to utilize a timing attack to discover information about the remote secret. In extreme circumstances this could result in the attacker determining the secret and uploading changed classes, thereby achieving remote code execution in the remote application.\n\nAffected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); DevTools remote secret comparison. Versions that are no longer supported are also affected per vendor advisory.","publishedAt":"2026-04-27T23:15:19.194Z","updatedAt":"2026-04-29T03:55:44.263Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"vmware"},"assigner":"vmware","products":["Spring Spring Boot"],"affected":[{"vendor":"Spring","product":"Spring Boot","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThan":"4.0.6","versionType":"custom"},{"version":"3.5.0","status":"affected","lessThan":"3.5.14","versionType":"custom"},{"version":"3.4.0","status":"affected","lessThan":"3.4.16","versionType":"custom"},{"version":"3.3.0","status":"affected","lessThan":"3.3.19","versionType":"custom"},{"version":"2.7.0","status":"affected","lessThan":"2.7.33","versionType":"custom"}],"modules":["spring-boot-devtools"]}],"references":["https://spring.io/security/cve-2026-40972"],"weaknesses":["CWE-208"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40972.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40972","state":"PUBLISHED","datePublished":"2026-04-27T23:15:19.194Z","dateUpdated":"2026-04-29T03:55:44.263Z","assignerShortName":"vmware","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateReserved":"2026-04-16T02:18:56.133Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An attacker on the same network as the remote application may be able to utilize a timing attack to discover information about the remote secret. In extreme circumstances this could result in the attacker determining the secret and uploading changed classes, thereby achieving remote code execution in the remote application.\n\nAffected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); DevTools remote secret comparison. Versions that are no longer supported are also affected per vendor advisory."}],"affected":[{"vendor":"Spring","product":"Spring Boot","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThan":"4.0.6","versionType":"custom"},{"version":"3.5.0","status":"affected","lessThan":"3.5.14","versionType":"custom"},{"version":"3.4.0","status":"affected","lessThan":"3.4.16","versionType":"custom"},{"version":"3.3.0","status":"affected","lessThan":"3.3.19","versionType":"custom"},{"version":"2.7.0","status":"affected","lessThan":"2.7.33","versionType":"custom"}],"modules":["spring-boot-devtools"]}],"references":[{"url":"https://spring.io/security/cve-2026-40972"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-208","lang":"en","description":"CWE-208: Observable Timing Discrepancy","type":"CWE"}]}],"providerMetadata":{"shortName":"vmware","orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateUpdated":"2026-04-27T23:15:19.194Z"},"impacts":[{"descriptions":[{"lang":"en","value":"Per CVSS v3.1: Confidentiality HIGH; Integrity HIGH; Availability HIGH."}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-28T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-40972"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-29T03:55:44.263Z"}}]}}}