{"id":29535,"date":"2026-09-26T08:32:33","date_gmt":"2026-09-26T00:32:33","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-6103"},"modified":"2026-09-26T08:32:33","modified_gmt":"2026-09-26T00:32:33","slug":"cve-2026-6103","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-6103","title":{"rendered":"CVE-2026-6103 [MEDIUM] &#8211; phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no over"},"content":{"rendered":"<p>phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF s<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29535","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29535","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29535"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}