CVE-2026-59881

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...

0x20bf (0.0.1), 2keys (0.5.1) +3601 more potentially affected by CVE-2026-59881 via aiohttp (>=0.6.4, <=3.14.1)

aiohttp PYPI version =0.6.4, =0.0.1a0, =0.0.15, =0.1.0, =0.5.0a0, =3.0.1, =1.0.0, =1.0.0, =0.0.1, =1.0.2, =0.2.1, =0.1.2, =0.1.9 and more Source cves: CVE-2026-59881 Source advisory: MEND:CVE-2026-59881...

CVE-2026-59881

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...

CVE-2026-59881

AIOHTTP WebSocket client vulnerability: before 3.14.2, the client accepts and decompresses frames with RSV1 set even when permessage-deflate was not negotiated, enabling potential CPU and memory overuse by a malicious server. Affected: AIOHTTP (WebSocket client). Root cause: decompressing frames ...

CVE-2026-59881

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...

CVE-2026-59881 AIOHTTP: WebSocket client accepts compressed frames without negotiated permessage-deflate

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...

Flyto2 Core: Guarded HTTP modules follow redirects into internal space without per-hop SSRF revalidation

Summary The HTTP modules that DO call the SSRF guard http.get, http.request, http.batch validate only the initial URL, then issue the request with aiohttp's default allowredirects=True and perform no per-hop revalidation. An attacker hosts a public URL that 302-redirects to an internal address; t...

CVE-2026-59881: Improper Input Validation

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...

Linux Distros Unpatched Vulnerability : CVE-2026-59881

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

aiohttp - Directory Traversal Detection

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. When using aiohttp as a web server and configuring static routes, it is necessary to specify the root path for static files. Additionally, the option 'followsymlinks' can be used to determine whether to follow symboli...

SUSE SLES15 Security Update : python-aiohttp (SUSE-SU-2026:3208-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3208-1 advisory. - CVE-2026-50269: improper validation of user-controlled strings allows for CRLF injection in multipart headers bsc1268398. -...

Security update for python-aiohttp

This update for python-aiohttp fixes the following issues: CVE-2026-50269: improper validation of user-controlled strings allows for CRLF injection in multipart headers bsc1268398. CVE-2026-54273: no limit in the HTTP/1 pipelined request queue can lead to excessive resource consumption bsc1268543...

SUSE-SU-2026:3207-1 Security update for python-aiohttp

This update for python-aiohttp fixes the following issues - CVE-2026-22815: insufficient restrictions in header/trailer handling can cause uncapped memory usage and a denial of service bsc1261320. - CVE-2026-34513: unbounded DNS cache can cause a excessive memory usage and lead to a denial of...

Exploit for Path Traversal in Aiohttp

CVE-20...

Exploit for Server-Side Request Forgery in Lollms

CVE-20...

USN-8591-1: AIOHTTP vulnerabilities

Sean Gilligan discovered that AIOHTTP did not properly limit memory usage when processing HTTP headers and trailers. An attacker could possibly use this issue to consume excessive system resources, resulting in a denial of service. CVE-2026-22815 It was discovered that AIOHTTP did not properly...

openSUSE 16 Security Update : python-aiohttp (openSUSE-SU-2026:21372-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21372-1 advisory. This update for python-aiohttp fixes the following issues - CVE-2026-50269: improper validation of user-controlled strings allows for CRLF...

modconf (0.4.0b2), tlseparation (1.1.3) +4 more potentially affected by CVE-2026-59890 via setuptools (36.0.1)

setuptools PYPI version 36.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on setuptools and may be impacted: - modconf 0.4.0b2 - tlseparation 1.1.3 - ws-sheets =0.5.0b1, =0.4.1b17, =0.1.0b11, =0.1.0b17 Source cves: CVE-2026-59890 Source advisory:...

Security update for python-aiohttp (important)

openSUSE security update: security update for python-aiohttp ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21372-1 Rating: important References: bsc1268398 bsc1268543 bsc1268544 bsc1268549 bsc1268556 bsc1268559 bsc1268560 bsc1268561...

SUSE SLES15 Security Update : python-aiohttp (SUSE-SU-2026:3059-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3059-1 advisory. This update for python-aiohttp fixes the following issues - CVE-2026-22815: insufficient header/trailer handling can cause a denial...