{"id":"CVE-2026-106026","summary":"tftp-hpa 5.4 before 6.0 Out-of-Bounds Read via tftpd Remap Jump Rule","details":"tftp-hpa 5.4 before 6.0 contains an out-of-bounds read vulnerability in rewrite_string() in tftpd/remap.c that walks heap memory during jump label searches. Unauthenticated remote attackers can send read or write requests whose filename matches a remap jump rule to crash the forked in.tftpd request handler.","modified":"2026-10-08T02:51:17.793203979Z","published":"2026-10-06T13:35:48.642Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106026.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-125"]},"references":[{"type":"WEB","url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106026.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106026"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/tftp-hpa-5.4-before-6.0-out-of-bounds-read-via-tftpd-remap-jump-rule"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=6735086fb6475c3e1f1daf9829836b3d06f14291"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git"},{"type":"ARTICLE","url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/tree/tftpd/remap.c?h=tftp-hpa-5.4#n762"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git","events":[{"introduced":"c1b7ae1c54eafca0b2001e38172a207104171bcc"},{"fixed":"a17da7d1f191394f15dbf10e5b27e2d73f10dcae"}],"database_specific":{"extracted_events":[{"introduced":"5.4"},{"fixed":"6.0"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["tftp-hpa-5.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106026.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}]}