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    <title>Most recent entries from all</title>
    <link>https://cve.radiocsirt.org</link>
    <description>Contains only the most 10 recent entries.</description>
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    <lastBuildDate>Fri, 02 Oct 2026 16:07:44 +0000</lastBuildDate>
    <item>
      <title>Withdrawn: CLEANSTART-2026-CP63847 — Security fixes in temporal-server 1.28.4-r1</title>
      <link>https://cve.radiocsirt.org/vuln/cleanstart-2026-cp63847</link>
      <description>&lt;p&gt;&lt;strong&gt;Withdrawn by the publisher.&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; CleanStart: temporal-server&lt;/p&gt;
&lt;p&gt;Package temporal-server version 1.28.4-r1 fixes 15 vulnerabilities: CVE-2026-39821, CVE-2026-33818, CVE-2026-46600, CVE-2026-56853, CVE-2026-56858...&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Withdrawn by the publisher.&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; CleanStart: temporal-server&lt;/p&gt;
&lt;p&gt;Package temporal-server version 1.28.4-r1 fixes 15 vulnerabilities: CVE-2026-39821, CVE-2026-33818, CVE-2026-46600, CVE-2026-56853, CVE-2026-56858...&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cleanstart-2026-cp63847</guid>
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    <item>
      <title>EUVD-2026-278542</title>
      <link>https://cve.radiocsirt.org/vuln/euvd-2026-278542</link>
      <description>EUVD-2026-278542</description>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/euvd-2026-278542</guid>
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    <item>
      <title>fkie_cve-2026-5199</title>
      <link>https://cve.radiocsirt.org/vuln/fkie_cve-2026-5199</link>
      <description>&lt;p&gt;A writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster. Exploitation requires the attacker to know or guess specific victim workflow ID(s) and, for signal operations, signal names. This was due to a bug introduced in Temporal Server v1.29.0 which inadvertently allowed an attacker to control the namespace name value instead of using the server&amp;#39;s own trusted name value within the batch activity code. The batch activity validated the namespace ID but did not cross-check the namespace name against the worker&amp;#39;s bound namespace, allowing the per-namespace worker&amp;#39;s privileged credentials to operate on an arbitrary namespace. Exploitation requires a server configuration where internal components have cross-namespace authorization, such as deployment of the internal-frontend service or equivalent TLS-based authorization for internal identities.&lt;/p&gt;
&lt;p&gt;This vulnerability also impacted Temporal Cloud when the attacker and victim namespaces were on the same cell, with the same preconditions as self-hosted clusters.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;A writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster. Exploitation requires the attacker to know or guess specific victim workflow ID(s) and, for signal operations, signal names. This was due to a bug introduced in Temporal Server v1.29.0 which inadvertently allowed an attacker to control the namespace name value instead of using the server&amp;#39;s own trusted name value within the batch activity code. The batch activity validated the namespace ID but did not cross-check the namespace name against the worker&amp;#39;s bound namespace, allowing the per-namespace worker&amp;#39;s privileged credentials to operate on an arbitrary namespace. Exploitation requires a server configuration where internal components have cross-namespace authorization, such as deployment of the internal-frontend service or equivalent TLS-based authorization for internal identities.&lt;/p&gt;
&lt;p&gt;This vulnerability also impacted Temporal Cloud when the attacker and victim namespaces were on the same cell, with the same preconditions as self-hosted clusters.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/fkie_cve-2026-5199</guid>
    </item>
    <item>
      <title>GHSA-xpg8-3hhp-p7w8 — Temporal Server: attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim name…</title>
      <link>https://cve.radiocsirt.org/vuln/ghsa-xpg8-3hhp-p7w8</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Go: go.temporal.io/server&lt;/p&gt;
&lt;p&gt;A writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster. Exploitation requires the attacker to know or guess specific victim workflow ID(s) and, for signal operations, signal names. This was due to a bug introduced in Temporal Server v1.29.0 which inadvertently allowed an attacker to control the namespace name value instead of using the server&amp;#39;s own trusted name value within the batch activity code. The batch activity validated the namespace ID but did not cross-check the namespace name against the worker&amp;#39;s bound namespace, allowing the per-namespace worker&amp;#39;s privileged credentials to operate on an arbitrary namespace. Exploitation requires a server configuration where internal components have cross-namespace authorization, such as deployment of the internal-frontend service or equivalent TLS-based authorization for internal identities.&lt;/p&gt;
&lt;p&gt;This vulnerability also impacted Temporal Cloud when the attacker and victim namespaces were on the same cell, with the same preconditions as self-hosted clusters.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Go: go.temporal.io/server&lt;/p&gt;
&lt;p&gt;A writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster. Exploitation requires the attacker to know or guess specific victim workflow ID(s) and, for signal operations, signal names. This was due to a bug introduced in Temporal Server v1.29.0 which inadvertently allowed an attacker to control the namespace name value instead of using the server&amp;#39;s own trusted name value within the batch activity code. The batch activity validated the namespace ID but did not cross-check the namespace name against the worker&amp;#39;s bound namespace, allowing the per-namespace worker&amp;#39;s privileged credentials to operate on an arbitrary namespace. Exploitation requires a server configuration where internal components have cross-namespace authorization, such as deployment of the internal-frontend service or equivalent TLS-based authorization for internal identities.&lt;/p&gt;
&lt;p&gt;This vulnerability also impacted Temporal Cloud when the attacker and victim namespaces were on the same cell, with the same preconditions as self-hosted clusters.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/ghsa-xpg8-3hhp-p7w8</guid>
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