{"id":"CVE-2026-44596","state":"PUBLISHED","title":"Yamcs: No Rate Limiting on Authentication Endpoint","description":"Yamcs is a mission control framework. Prior to 5.12.7, the authentication endpoint POST /auth/token in yamcs-core, handled by yamcs-core/src/main/java/org/yamcs/http/auth/AuthHandler.java, lacked any rate limiting, account lockout, or failed-attempt throttling, so an unauthenticated remote attacker could perform unlimited password-guessing attempts against any user account, significantly increasing the risk of successful brute-force attacks. This issue is fixed in versions 5.12.7 and 5.13.0.","publishedAt":"2026-07-16T16:04:11.794Z","updatedAt":"2026-07-17T14:05:15.049Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["yamcs yamcs"],"affected":[{"vendor":"yamcs","product":"yamcs","versions":[{"version":"< 5.12.7","status":"affected"}]}],"references":["https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4","https://github.com/yamcs/yamcs/commit/309218c651680f79df11a8d0f8628f7033f98a83","https://github.com/yamcs/yamcs/commit/64392df531fbcbc65f19ee5724c4c23d289f49fc","https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7","https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0"],"weaknesses":["CWE-307"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44596.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44596","state":"PUBLISHED","datePublished":"2026-07-16T16:04:11.794Z","dateUpdated":"2026-07-17T14:05:15.049Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-06T21:49:12.426Z"},"containers":{"cna":{"title":"Yamcs: No Rate Limiting on Authentication Endpoint","descriptions":[{"lang":"en","value":"Yamcs is a mission control framework. Prior to 5.12.7, the authentication endpoint POST /auth/token in yamcs-core, handled by yamcs-core/src/main/java/org/yamcs/http/auth/AuthHandler.java, lacked any rate limiting, account lockout, or failed-attempt throttling, so an unauthenticated remote attacker could perform unlimited password-guessing attempts against any user account, significantly increasing the risk of successful brute-force attacks. This issue is fixed in versions 5.12.7 and 5.13.0."}],"affected":[{"vendor":"yamcs","product":"yamcs","versions":[{"version":"< 5.12.7","status":"affected"}]}],"references":[{"url":"https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4","name":"https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/yamcs/yamcs/commit/309218c651680f79df11a8d0f8628f7033f98a83","name":"https://github.com/yamcs/yamcs/commit/309218c651680f79df11a8d0f8628f7033f98a83","tags":["x_refsource_MISC"]},{"url":"https://github.com/yamcs/yamcs/commit/64392df531fbcbc65f19ee5724c4c23d289f49fc","name":"https://github.com/yamcs/yamcs/commit/64392df531fbcbc65f19ee5724c4c23d289f49fc","tags":["x_refsource_MISC"]},{"url":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7","name":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7","tags":["x_refsource_MISC"]},{"url":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0","name":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-307","lang":"en","description":"CWE-307: Improper Restriction of Excessive Authentication Attempts","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-16T16:04:11.794Z"},"source":{"advisory":"GHSA-w5r6-mcgq-7pq4","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-17T14:05:04.998522Z","id":"CVE-2026-44596","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-17T14:05:15.049Z"}}]}}}