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    <title>Most recent sightings.</title>
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      <title>599adbfd-78b1-420a-9552-36373ccc6fc4</title>
      <link>https://vulnerability.circl.lu/sighting/599adbfd-78b1-420a-9552-36373ccc6fc4/export</link>
      <description>{"uuid": "599adbfd-78b1-420a-9552-36373ccc6fc4", "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/khesefxyz.bsky.social/post/3mqqselcdyg2t", "content": "\u05ea\u05e7\u05dc\u05d4 \u05d7\u05de\u05d5\u05e8\u05d4 \u05d1\u05e4\u05e8\u05dc: CVE-2026-13221 - \u05ea\u05d5\u05e6\u05d0\u05d5\u05ea \u05dc\u05d0 \u05e0\u05db\u05d5\u05e0\u05d5\u05ea \u05e9\u05dc \u05d1\u05d9\u05d8\u05d5\u05d9\u05d9\u05dd \u05e8\u05d2\u05d5\u05dc\u05e8\u05d9\u05d9\u05dd\n\n\n\nhttps://khesef.xyz/posts/DDBD0A04-3DF9-452A-BA62-4D01EE8E8428", "creation_timestamp": "2026-07-16T08:18:18.782120Z"}</description>
      <content:encoded>{"uuid": "599adbfd-78b1-420a-9552-36373ccc6fc4", "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/khesefxyz.bsky.social/post/3mqqselcdyg2t", "content": "\u05ea\u05e7\u05dc\u05d4 \u05d7\u05de\u05d5\u05e8\u05d4 \u05d1\u05e4\u05e8\u05dc: CVE-2026-13221 - \u05ea\u05d5\u05e6\u05d0\u05d5\u05ea \u05dc\u05d0 \u05e0\u05db\u05d5\u05e0\u05d5\u05ea \u05e9\u05dc \u05d1\u05d9\u05d8\u05d5\u05d9\u05d9\u05dd \u05e8\u05d2\u05d5\u05dc\u05e8\u05d9\u05d9\u05dd\n\n\n\nhttps://khesef.xyz/posts/DDBD0A04-3DF9-452A-BA62-4D01EE8E8428", "creation_timestamp": "2026-07-16T08:18:18.782120Z"}</content:encoded>
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      <pubDate>Thu, 16 Jul 2026 08:18:18 +0000</pubDate>
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    <item>
      <title>8ba19fba-4f97-473b-a884-1291571597cb</title>
      <link>https://vulnerability.circl.lu/sighting/8ba19fba-4f97-473b-a884-1291571597cb/export</link>
      <description>{"uuid": "8ba19fba-4f97-473b-a884-1291571597cb", "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/3mqplvvxp7b2o", "content": "CVE-2026-13221 - perl\nPerl versions before 5.44 may produce incorrect results when using certain regular expressions. This could lead to unexpected behavior in your program or data being\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#perl #canonical #UbuntuPro1404LTS #CVE #infosec", "creation_timestamp": "2026-07-15T20:50:04.378238Z"}</description>
      <content:encoded>{"uuid": "8ba19fba-4f97-473b-a884-1291571597cb", "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/3mqplvvxp7b2o", "content": "CVE-2026-13221 - perl\nPerl versions before 5.44 may produce incorrect results when using certain regular expressions. This could lead to unexpected behavior in your program or data being\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#perl #canonical #UbuntuPro1404LTS #CVE #infosec", "creation_timestamp": "2026-07-15T20:50:04.378238Z"}</content:encoded>
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      <pubDate>Wed, 15 Jul 2026 20:50:04 +0000</pubDate>
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      <title>65ef077f-eb9b-4e7e-932b-185683f5e8f7</title>
      <link>https://vulnerability.circl.lu/sighting/65ef077f-eb9b-4e7e-932b-185683f5e8f7/export</link>
      <description>{"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"}</description>
      <content:encoded>{"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"}</content:encoded>
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      <pubDate>Tue, 14 Jul 2026 14:44:05 +0000</pubDate>
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    <item>
      <title>5161e3bb-552c-487c-9e1d-6444b3213ccb</title>
      <link>https://vulnerability.circl.lu/sighting/5161e3bb-552c-487c-9e1d-6444b3213ccb/export</link>
      <description>{"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"}</description>
      <content:encoded>{"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"}</content:encoded>
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      <pubDate>Mon, 13 Jul 2026 18:30:14 +0000</pubDate>
    </item>
    <item>
      <title>63202567-9445-4450-876d-05772f61b788</title>
      <link>https://vulnerability.circl.lu/sighting/63202567-9445-4450-876d-05772f61b788/export</link>
      <description>{"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"}</description>
      <content:encoded>{"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"}</content:encoded>
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      <pubDate>Mon, 13 Jul 2026 17:43:27 +0000</pubDate>
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