{"id":"CVE-2026-17578","aliases":["EUVD-2026-53299","GHSA-v6xc-r9wm-438j"],"status":"published","title":"Kong Event Gateway AES-GCM nonce reuse due to missing key rotation enforcement","description":"Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled.\n\n\n\nIf a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.\n\n\n\nNew versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.","severity":{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:N/R:U/U:Amber","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00244,"percentile":0.15798,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-323"],"published":"2026-08-05T10:20:55Z","modified":"2026-10-23T21:10:00Z","products":[{"vendor":"kong","product":"kong event gateway"}],"references":[{"url":"https://developer.konghq.com/event-gateway/changelog/","tags":["release-notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17578"},{"url":"https://developer.konghq.com/event-gateway/changelog"},{"url":"https://github.com/advisories/GHSA-v6xc-r9wm-438j"}],"sources":{"cve":[{"id":"CVE-2026-17578","title":"Kong Event Gateway AES-GCM nonce reuse due to missing key rotation enforcement","description":"Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled.\n\n\n\nIf a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.\n\n\n\nNew versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.","status":"published","published":"2026-08-05T10:20:55.471Z","modified":"2026-08-05T13:07:23.408Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:N/R:U/U:Amber","level":"low","assessor":"cna"}],"cwes":["CWE-323"],"updated_at":"2026-11-02T14:19:54.50686Z"}],"euvd":[{"id":"EUVD-2026-53299","description":"Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled.\n\n\n\nIf a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.\n\n\n\nNew versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.","status":"published","published":"2026-08-05T10:20:55Z","modified":"2026-08-05T13:07:23Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:N/R:U/U:Amber","level":"low"}],"updated_at":"2026-11-02T18:02:10.813132Z"}],"ghsa":[{"id":"GHSA-v6xc-r9wm-438j","title":"Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before...","description":"Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled.\n\n\n\nIf a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.\n\n\n\nNew versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.","status":"published","published":"2026-08-05T12:31:30Z","modified":"2026-08-05T12:31:36Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:X/U:Amber","level":"low"}],"cwes":["CWE-323"],"updated_at":"2026-11-02T15:10:06.632203Z"}],"nvd":[{"id":"CVE-2026-17578","description":"Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled.\n\n\n\nIf a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.\n\n\n\nNew versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.","status":"published","published":"2026-08-05T11:16:25.197Z","modified":"2026-10-23T21:10:00.157Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:X/U:Amber","level":"low","assessor":"secondary"}],"cwes":["CWE-323"],"updated_at":"2026-11-02T14:12:35.031043Z"}]}}