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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Wed, 30 Sep 2026 21:44:43 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-54277 — AIOHTTP: C HTTP Parser Bypasses max_line_size for Fragmented Lines</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-54277</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; aio-libs aiohttp&lt;/p&gt;
&lt;p&gt;AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; aio-libs aiohttp&lt;/p&gt;
&lt;p&gt;AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-54277</guid>
    </item>
    <item>
      <title>GHSA-63hw-fmq6-xxg2 — aiohttp: C HTTP Parser Bypasses max_line_size for Fragmented Lines</title>
      <link>https://vulnerability.circl.lu/vuln/ghsa-63hw-fmq6-xxg2</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; PyPI: aiohttp&lt;/p&gt;
&lt;p&gt;### Summary&lt;/p&gt;
&lt;p&gt;It is possible to bypass the max_line_size check in parts of an HTTP request in the C parser.&lt;/p&gt;
&lt;p&gt;### Impact&lt;/p&gt;
&lt;p&gt;If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS.&lt;/p&gt;
&lt;p&gt;-----&lt;/p&gt;
&lt;p&gt;Patch: https://github.com/aio-libs/aiohttp/commit/5ab61bb4cd88f19b712f12c7c9295fe262bf804d&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; PyPI: aiohttp&lt;/p&gt;
&lt;p&gt;### Summary&lt;/p&gt;
&lt;p&gt;It is possible to bypass the max_line_size check in parts of an HTTP request in the C parser.&lt;/p&gt;
&lt;p&gt;### Impact&lt;/p&gt;
&lt;p&gt;If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS.&lt;/p&gt;
&lt;p&gt;-----&lt;/p&gt;
&lt;p&gt;Patch: https://github.com/aio-libs/aiohttp/commit/5ab61bb4cd88f19b712f12c7c9295fe262bf804d&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/ghsa-63hw-fmq6-xxg2</guid>
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    <item>
      <title>PYSEC-2026-2110</title>
      <link>https://vulnerability.circl.lu/vuln/pysec-2026-2110</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; PyPI: aiohttp&lt;/p&gt;
&lt;p&gt;AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; PyPI: aiohttp&lt;/p&gt;
&lt;p&gt;AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/pysec-2026-2110</guid>
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