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  <title>Most recent sightings.</title>
  <updated>2026-09-05T08:37:44.887169+00:00</updated>
  <author>
    <name>Vulnerability-Lookup</name>
    <email>info@circl.lu</email>
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  <subtitle>Contains only the most 10 recent sightings.</subtitle>
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    <id>https://vulnerability.circl.lu/sighting/43a9a3b0-db17-4b08-858f-e7bec04748aa/export</id>
    <title>43a9a3b0-db17-4b08-858f-e7bec04748aa</title>
    <updated>2026-09-05T08:37:44.904404+00:00</updated>
    <author>
      <name>Automation user</name>
      <uri>https://vulnerability.circl.lu/user/automation</uri>
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    <content>{"uuid": "43a9a3b0-db17-4b08-858f-e7bec04748aa", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-21641", "type": "published-proof-of-concept", "source": "https://t.me/hacking_Attack/178244", "content": "How I Found My First CVE (CVE-2026\u201321641)\nhttps://medium.com/@0xJad/how-i-found-my-first-cve-cve-2026-21641-7f29af74fc84?source=rss------bug_bounty-5\n\nCVE-2026\u201321641: Broken Access Control in Revive AdserverContinue reading on Medium \u00bb (https://medium.com/@0xJad/how-i-found-my-first-cve-cve-2026-21641-7f29af74fc84?source=rss------bug_bounty-5)", "creation_timestamp": "2026-09-04T00:01:06.406892Z"}</content>
    <link href="https://vulnerability.circl.lu/sighting/43a9a3b0-db17-4b08-858f-e7bec04748aa/export"/>
    <published>2026-09-04T00:01:06.406892+00:00</published>
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    <id>https://vulnerability.circl.lu/sighting/a2768efb-3316-47f5-af21-3b1a936e86ef/export</id>
    <title>a2768efb-3316-47f5-af21-3b1a936e86ef</title>
    <updated>2026-09-05T08:37:44.907163+00:00</updated>
    <author>
      <name>Automation user</name>
      <uri>https://vulnerability.circl.lu/user/automation</uri>
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    <content>{"uuid": "a2768efb-3316-47f5-af21-3b1a936e86ef", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-21641", "type": "published-proof-of-concept", "source": "https://t.me/hacking_Attack/178244", "content": "How I Found My First CVE (CVE-2026\u201321641)\nhttps://medium.com/@0xJad/how-i-found-my-first-cve-cve-2026-21641-7f29af74fc84?source=rss------bug_bounty-5\n\nCVE-2026\u201321641: Broken Access Control in Revive AdserverContinue reading on Medium \u00bb (https://medium.com/@0xJad/how-i-found-my-first-cve-cve-2026-21641-7f29af74fc84?source=rss------bug_bounty-5)", "creation_timestamp": "2026-09-03T01:00:03.933165Z"}</content>
    <link href="https://vulnerability.circl.lu/sighting/a2768efb-3316-47f5-af21-3b1a936e86ef/export"/>
    <published>2026-09-03T01:00:03.933165+00:00</published>
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  <entry>
    <id>https://vulnerability.circl.lu/sighting/27ff2e07-f7b8-417f-8872-81f9b6cadc3f/export</id>
    <title>27ff2e07-f7b8-417f-8872-81f9b6cadc3f</title>
    <updated>2026-09-05T08:37:44.907505+00:00</updated>
    <author>
      <name>Automation user</name>
      <uri>https://vulnerability.circl.lu/user/automation</uri>
    </author>
    <content>{"uuid": "27ff2e07-f7b8-417f-8872-81f9b6cadc3f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-21641", "type": "seen", "source": "https://t.me/hacking_Attack/178244", "content": "How I Found My First CVE (CVE-2026\u201321641)\nhttps://medium.com/@0xJad/how-i-found-my-first-cve-cve-2026-21641-7f29af74fc84?source=rss------bug_bounty-5\n\nCVE-2026\u201321641: Broken Access Control in Revive AdserverContinue reading on Medium \u00bb (https://medium.com/@0xJad/how-i-found-my-first-cve-cve-2026-21641-7f29af74fc84?source=rss------bug_bounty-5)", "creation_timestamp": "2026-09-02T01:00:31.954539Z"}</content>
    <link href="https://vulnerability.circl.lu/sighting/27ff2e07-f7b8-417f-8872-81f9b6cadc3f/export"/>
    <published>2026-09-02T01:00:31.954539+00:00</published>
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  <entry>
    <id>https://vulnerability.circl.lu/sighting/2b96ce42-322e-4d82-a0e9-90b989c0a252/export</id>
    <title>2b96ce42-322e-4d82-a0e9-90b989c0a252</title>
    <updated>2026-09-05T08:37:44.907783+00:00</updated>
    <author>
      <name>Automation user</name>
      <uri>https://vulnerability.circl.lu/user/automation</uri>
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    <content>{"uuid": "2b96ce42-322e-4d82-a0e9-90b989c0a252", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-21641", "type": "seen", "source": "https://t.me/hacking_Attack/178244", "content": "How I Found My First CVE (CVE-2026\u201321641)\nhttps://medium.com/@0xJad/how-i-found-my-first-cve-cve-2026-21641-7f29af74fc84?source=rss------bug_bounty-5\n\nCVE-2026\u201321641: Broken Access Control in Revive AdserverContinue reading on Medium \u00bb (https://medium.com/@0xJad/how-i-found-my-first-cve-cve-2026-21641-7f29af74fc84?source=rss------bug_bounty-5)", "creation_timestamp": "2026-09-01T20:00:13.847608Z"}</content>
    <link href="https://vulnerability.circl.lu/sighting/2b96ce42-322e-4d82-a0e9-90b989c0a252/export"/>
    <published>2026-09-01T20:00:13.847608+00:00</published>
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  <entry>
    <id>https://vulnerability.circl.lu/sighting/3832bc5b-5cb7-448a-8780-0a7d7e861ec4/export</id>
    <title>3832bc5b-5cb7-448a-8780-0a7d7e861ec4</title>
    <updated>2026-09-05T08:37:44.908036+00:00</updated>
    <author>
      <name>Automation user</name>
      <uri>https://vulnerability.circl.lu/user/automation</uri>
    </author>
    <content>{"uuid": "3832bc5b-5cb7-448a-8780-0a7d7e861ec4", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-21641", "type": "seen", "source": "https://bsky.app/profile/securitycipher.bsky.social/post/3mczvik3h3s24", "content": "", "creation_timestamp": "2026-01-22T19:15:27.875616Z"}</content>
    <link href="https://vulnerability.circl.lu/sighting/3832bc5b-5cb7-448a-8780-0a7d7e861ec4/export"/>
    <published>2026-01-22T19:15:27.875616+00:00</published>
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