{"id":"CVE-2026-23303","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Don't log plaintext credentials in cifs_set_cifscreds\n\nWhen debug logging is enabled, cifs_set_cifscreds() logs the key\npayload and exposes the plaintext u…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Don't log plaintext credentials in cifs_set_cifscreds\n\nWhen debug logging is enabled, cifs_set_cifscreds() logs the key\npayload and exposes the plaintext u…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.3.1, < 5.10.253","linux_kernel >= 5.11, < 5.15.203","linux_kernel >= 5.16, < 6.1.167","linux_kernel >= 6.2, < 6.6.130","linux_kernel >= 6.7, < 6.12.77","linux_kernel >= 6.13, < 6.18.17","linux_kernel >= 6.19, < 6.19.7","linux_kernel = 3.3","linux_kernel = 7.0"],"patched":["linux_kernel 6.19.7"],"published":"2026-03-25","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:18:48.480","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-23303","references":[{"url":"https://git.kernel.org/stable/c/2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3990f352bb0adc8688d0949a9c13e3110570eb61","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3e182701db612ddd794ccd5ed822e6cc1db2b972","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/54c570de9a35860dfa85fe668f23ddfda8cc7e26","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b746a357abfb8fdb0a171d51ec5091e786d34be1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e5a3b11e07b335006371915b2da47b6056c9e3bc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ff0ece8ed04180c52167c003362284b23cf54e8d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00123,"epssPercentile":0.01844,"ingestedAt":"2026-10-15T03:30:12.841Z","slug":"CVE-2026-23303","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Don't log plaintext credentials in cifs_set_cifscreds\n\nWhen debug logging is enabled, cifs_set_cifscreds() logs the key\npayload and exposes the plaintext username and password. Remove the\ndebug log to avoid exposing credentials.\n\n## Affected\n\n- `linux_kernel >= 3.3.1, < 5.10.253`\n- `linux_kernel >= 5.11, < 5.15.203`\n- `linux_kernel >= 5.16, < 6.1.167`\n- `linux_kernel >= 6.2, < 6.6.130`\n- `linux_kernel >= 6.7, < 6.12.77`\n- `linux_kernel >= 6.13, < 6.18.17`\n- `linux_kernel >= 6.19, < 6.19.7`\n- `linux_kernel = 3.3`\n- `linux_kernel = 7.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.19.7`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}