{"vulnerability": "cve-2026-13221", "sightings": [{"uuid": "63202567-9445-4450-876d-05772f61b788", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-13221", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mqkakeohr427", "content": "CVE-2026-13221 - Perl versions through 5.43.9 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl_study_chunk\nCVE ID : CVE-2026-13221\n \n Published : July 13, 2026, 5:16 p.m. | 13\u00a0min...", "creation_timestamp": "2026-07-13T17:43:27.192768Z"}, {"uuid": "5161e3bb-552c-487c-9e1d-6444b3213ccb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-13221", "type": "seen", "source": "https://bsky.app/profile/infosec.skyfleet.blue/post/3mqkd626fd62t", "content": "CVE-2026-13221: Perl versions through 5.43.9 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl_study_chunk", "creation_timestamp": "2026-07-13T18:30:14.867414Z"}, {"uuid": "65ef077f-eb9b-4e7e-932b-185683f5e8f7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-13221", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mqmgyjzxaw2f", "content": "CVE-2026-13221\nPerl versions 5.43.9 and earlier can return incorrect results from regular expressions, leading to unexpected behavior or security issues. This can happen when a pattern with many fixed strings is used,\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#CVE #infosec", "creation_timestamp": "2026-07-14T14:44:05.030225Z"}]}