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    <link>https://vulnerability.circl.lu</link>
    <description>Contains only the most 10 recent entries.</description>
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    <lastBuildDate>Thu, 01 Oct 2026 13:03:09 +0000</lastBuildDate>
    <item>
      <title>fkie_cve-2026-93601</title>
      <link>https://vulnerability.circl.lu/vuln/fkie_cve-2026-93601</link>
      <description>&lt;p&gt;rustls-webpki (the Rust webpki fork used by rustls) versions &amp;gt;= 0.101.0 and prior to 0.103.12 and 0.104.0-alpha.6 incorrectly accepted permitted-subtree DNS name constraints for certificates asserting a wildcard name. For example, a name constraint of accept.example.com was treated as satisfied by a certificate for *.example.com, which could feasibly assert reject.example.com — a name outside the permitted subtree. Because name constraints are restrictions applied to otherwise properly issued certificates, the issue is only reachable after signature verification succeeds and requires a misissued wildcard certificate to exploit.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;rustls-webpki (the Rust webpki fork used by rustls) versions &amp;gt;= 0.101.0 and prior to 0.103.12 and 0.104.0-alpha.6 incorrectly accepted permitted-subtree DNS name constraints for certificates asserting a wildcard name. For example, a name constraint of accept.example.com was treated as satisfied by a certificate for *.example.com, which could feasibly assert reject.example.com — a name outside the permitted subtree. Because name constraints are restrictions applied to otherwise properly issued certificates, the issue is only reachable after signature verification succeeds and requires a misissued wildcard certificate to exploit.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/fkie_cve-2026-93601</guid>
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    <item>
      <title>GHSA-27hx-xqx9-p6hq</title>
      <link>https://vulnerability.circl.lu/vuln/ghsa-27hx-xqx9-p6hq</link>
      <description>&lt;p&gt;rustls-webpki (the Rust webpki fork used by rustls) versions &amp;gt;= 0.101.0 and prior to 0.103.12 and 0.104.0-alpha.6 incorrectly accepted permitted-subtree DNS name constraints for certificates asserting a wildcard name. For example, a name constraint of accept.example.com was treated as satisfied by a certificate for *.example.com, which could feasibly assert reject.example.com — a name outside the permitted subtree. Because name constraints are restrictions applied to otherwise properly issued certificates, the issue is only reachable after signature verification succeeds and requires a misissued wildcard certificate to exploit.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;rustls-webpki (the Rust webpki fork used by rustls) versions &amp;gt;= 0.101.0 and prior to 0.103.12 and 0.104.0-alpha.6 incorrectly accepted permitted-subtree DNS name constraints for certificates asserting a wildcard name. For example, a name constraint of accept.example.com was treated as satisfied by a certificate for *.example.com, which could feasibly assert reject.example.com — a name outside the permitted subtree. Because name constraints are restrictions applied to otherwise properly issued certificates, the issue is only reachable after signature verification succeeds and requires a misissued wildcard certificate to exploit.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/ghsa-27hx-xqx9-p6hq</guid>
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    <item>
      <title>msrc_CVE-2026-93601 — rustls webpki 0.101.0 before 0.103.12 Name Constraint Bypass</title>
      <link>https://vulnerability.circl.lu/vuln/msrc_cve-2026-93601</link>
      <description>msrc_CVE-2026-93601</description>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/msrc_cve-2026-93601</guid>
    </item>
    <item>
      <title>openSUSE-SU-2026:11936-1 — python313-tokenizers-0.23.2-1.1 on GA media</title>
      <link>https://vulnerability.circl.lu/vuln/opensuse-su-2026:11936-1</link>
      <description>&lt;p&gt;python313-tokenizers-0.23.2-1.1 on GA media&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;python313-tokenizers-0.23.2-1.1 on GA media&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/opensuse-su-2026:11936-1</guid>
    </item>
    <item>
      <title>RUSTSEC-2026-0099 — Name constraints were accepted for certificates asserting a wildcard name</title>
      <link>https://vulnerability.circl.lu/vuln/rustsec-2026-0099</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; crates.io: rustls-webpki&lt;/p&gt;
&lt;p&gt;Permitted subtree name constraints for DNS names were accepted for certificates asserting a wildcard name.&lt;/p&gt;
&lt;p&gt;This was incorrect because, given a name constraint of `accept.example.com`, `*.example.com` could feasibly allow a name of `reject.example.com` which is outside the constraint.
This is very similar to [CVE-2025-61727](https://go.dev/issue/76442).&lt;/p&gt;
&lt;p&gt;Since name constraints are restrictions on otherwise properly-issued certificates, this bug is reachable only after signature verification and requires misissuance to exploit.&lt;/p&gt;
&lt;p&gt;This vulnerability is identified as [GHSA-xgp8-3hg3-c2mh](https://github.com/rustls/webpki/security/advisories/GHSA-xgp8-3hg3-c2mh). Thank you to [@1seal](https://github.com/1seal) for the report.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; crates.io: rustls-webpki&lt;/p&gt;
&lt;p&gt;Permitted subtree name constraints for DNS names were accepted for certificates asserting a wildcard name.&lt;/p&gt;
&lt;p&gt;This was incorrect because, given a name constraint of `accept.example.com`, `*.example.com` could feasibly allow a name of `reject.example.com` which is outside the constraint.
This is very similar to [CVE-2025-61727](https://go.dev/issue/76442).&lt;/p&gt;
&lt;p&gt;Since name constraints are restrictions on otherwise properly-issued certificates, this bug is reachable only after signature verification and requires misissuance to exploit.&lt;/p&gt;
&lt;p&gt;This vulnerability is identified as [GHSA-xgp8-3hg3-c2mh](https://github.com/rustls/webpki/security/advisories/GHSA-xgp8-3hg3-c2mh). Thank you to [@1seal](https://github.com/1seal) for the report.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/rustsec-2026-0099</guid>
    </item>
    <item>
      <title>UBUNTU-CVE-2026-93601</title>
      <link>https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-93601</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Ubuntu:24.04:LTS: rust-rustls-webpki, Ubuntu:26.04:LTS: rust-rustls-webpki&lt;/p&gt;
&lt;p&gt;rustls-webpki (the Rust webpki fork used by rustls) versions &amp;gt;= 0.101.0 and prior to 0.103.12 and 0.104.0-alpha.6 incorrectly accepted permitted-subtree DNS name constraints for certificates asserting a wildcard name. For example, a name constraint of accept.example.com was treated as satisfied by a certificate for *.example.com, which could feasibly assert reject.example.com — a name outside the permitted subtree. Because name constraints are restrictions applied to otherwise properly issued certificates, the issue is only reachable after signature verification succeeds and requires a misissued wildcard certificate to exploit.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Ubuntu:24.04:LTS: rust-rustls-webpki, Ubuntu:26.04:LTS: rust-rustls-webpki&lt;/p&gt;
&lt;p&gt;rustls-webpki (the Rust webpki fork used by rustls) versions &amp;gt;= 0.101.0 and prior to 0.103.12 and 0.104.0-alpha.6 incorrectly accepted permitted-subtree DNS name constraints for certificates asserting a wildcard name. For example, a name constraint of accept.example.com was treated as satisfied by a certificate for *.example.com, which could feasibly assert reject.example.com — a name outside the permitted subtree. Because name constraints are restrictions applied to otherwise properly issued certificates, the issue is only reachable after signature verification succeeds and requires a misissued wildcard certificate to exploit.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-93601</guid>
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