https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 16:18:51 +0000 https://db.gcve.eu/vuln/cve-2026-59881 <p><strong>Affected:</strong> aio-libs aiohttp</p> <p>AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the WebSocket client accepts and decompresses frames with the RSV1 bit set even when the permessage-deflate extension was not negotiated, allowing a malicious server to cause unexpected CPU and memory consumption. This issue is fixed in version 3.14.2.</p> <p><strong>Affected:</strong> aio-libs aiohttp</p> <p>AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the WebSocket client accepts and decompresses frames with the RSV1 bit set even when the permessage-deflate extension was not negotiated, allowing a malicious server to cause unexpected CPU and memory consumption. This issue is fixed in version 3.14.2.</p> https://db.gcve.eu/vuln/cve-2026-59881 https://db.gcve.eu/vuln/ghsa-mq44-7p77-q5h7 <p><strong>Affected:</strong> PyPI: aiohttp</p> <p>### Summary</p> <p>The client accepts and decompresses frames with the RSV1 bit set even when the `permessage-deflate` extension was not negotiated.</p> <p>### Impact</p> <p>A client may unexpectedly decompress WebSocket frames when explicitly opted out. This could lead to additional CPU/memory consumption, but is unlikely to be a significant issue unless a zip bomb vulnerability or similar is also present.</p> <p>---</p> <p>Patch: https://github.com/aio-libs/aiohttp/commit/47fb6ae354d4fa22048f4dbe7dbf82b625f0a2f6</p> <p><strong>Affected:</strong> PyPI: aiohttp</p> <p>### Summary</p> <p>The client accepts and decompresses frames with the RSV1 bit set even when the `permessage-deflate` extension was not negotiated.</p> <p>### Impact</p> <p>A client may unexpectedly decompress WebSocket frames when explicitly opted out. This could lead to additional CPU/memory consumption, but is unlikely to be a significant issue unless a zip bomb vulnerability or similar is also present.</p> <p>---</p> <p>Patch: https://github.com/aio-libs/aiohttp/commit/47fb6ae354d4fa22048f4dbe7dbf82b625f0a2f6</p> https://db.gcve.eu/vuln/ghsa-mq44-7p77-q5h7 https://db.gcve.eu/vuln/pysec-2026-3547 <p><strong>Affected:</strong> PyPI: aiohttp</p> <p>### Summary</p> <p>The client accepts and decompresses frames with the RSV1 bit set even when the `permessage-deflate` extension was not negotiated.</p> <p>### Impact</p> <p>A client may unexpectedly decompress WebSocket frames when explicitly opted out. This could lead to additional CPU/memory consumption, but is unlikely to be a significant issue unless a zip bomb vulnerability or similar is also present.</p> <p>---</p> <p>Patch: https://github.com/aio-libs/aiohttp/commit/47fb6ae354d4fa22048f4dbe7dbf82b625f0a2f6</p> <p><strong>Affected:</strong> PyPI: aiohttp</p> <p>### Summary</p> <p>The client accepts and decompresses frames with the RSV1 bit set even when the `permessage-deflate` extension was not negotiated.</p> <p>### Impact</p> <p>A client may unexpectedly decompress WebSocket frames when explicitly opted out. This could lead to additional CPU/memory consumption, but is unlikely to be a significant issue unless a zip bomb vulnerability or similar is also present.</p> <p>---</p> <p>Patch: https://github.com/aio-libs/aiohttp/commit/47fb6ae354d4fa22048f4dbe7dbf82b625f0a2f6</p> https://db.gcve.eu/vuln/pysec-2026-3547