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    <title>Most recent entries from all</title>
    <link>https://db.gcve.eu</link>
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    <lastBuildDate>Mon, 28 Sep 2026 18:28:06 +0000</lastBuildDate>
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      <title>CVE-2026-101088 — Nezha before 2.3.1 Denial of Service via Concurrent Server Delete</title>
      <link>https://db.gcve.eu/vuln/cve-2026-101088</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; nezhahq nezha&lt;/p&gt;
&lt;p&gt;Nezha is a server and website monitoring tool. In versions &amp;gt;= 2.2.11 and &amp;lt; 2.3.1, the service sentinel worker (service/singleton/servicesentinel.go) contains an incomplete fix for a previously reported nil dereference denial of service (GHSA-qjpp-gffx-2wm9). The 2026-07-21 fix re-validated the service lifecycle under serviceResponseDataStoreLock but reused an already-captured, now stale reporter pointer and never re-validated the server, and that lock does not guard ServerShared. An authenticated user with the member role who owns an agent can issue a concurrent server delete (POST /api/v1/batch-delete/server) for their own server to win the race window, causing the worker to dereference a missing entry in the server list snapshot. Because the sentinel workers and the gRPC server have no recover()/recovery interceptor, the resulting panic is unrecovered and crashes the entire instance. This is fixed in version 2.3.1.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; nezhahq nezha&lt;/p&gt;
&lt;p&gt;Nezha is a server and website monitoring tool. In versions &amp;gt;= 2.2.11 and &amp;lt; 2.3.1, the service sentinel worker (service/singleton/servicesentinel.go) contains an incomplete fix for a previously reported nil dereference denial of service (GHSA-qjpp-gffx-2wm9). The 2026-07-21 fix re-validated the service lifecycle under serviceResponseDataStoreLock but reused an already-captured, now stale reporter pointer and never re-validated the server, and that lock does not guard ServerShared. An authenticated user with the member role who owns an agent can issue a concurrent server delete (POST /api/v1/batch-delete/server) for their own server to win the race window, causing the worker to dereference a missing entry in the server list snapshot. Because the sentinel workers and the gRPC server have no recover()/recovery interceptor, the resulting panic is unrecovered and crashes the entire instance. This is fixed in version 2.3.1.&lt;/p&gt;</content:encoded>
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