{"id":"CVE-2026-55738","title":"A stack-based buffer overflow exists in the raw_to_header function in src/microtar.c in rxi microtar 0.1.0","summary":"A stack-based buffer overflow exists in the raw_to_header function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of th…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-121","CWE-170"],"published":"2026-06-17","updated":"2026-08-10","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55738","references":[{"url":"https://github.com/rxi/microtar","label":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"},{"url":"https://github.com/rxi/microtar/blob/master/src/microtar.c#L111","label":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"},{"url":"https://raw.githubusercontent.com/rxi/microtar/master/src/microtar.c","label":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"}],"tags":["nvd"],"epss":0.00398,"epssPercentile":0.33862,"ingestedAt":"2026-08-10T12:39:46.906Z","slug":"CVE-2026-55738","body":"## Overview\n\nA stack-based buffer overflow exists in the raw_to_header function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}