An update for python-aiohttp is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-4560 Final 1.0 1.0 2026-10-29 Initial 2026-10-29 2026-10-29 openEuler SA Tool V1.0 2026-10-29 python-aiohttp security update An update for python-aiohttp is now available for openEuler-24.03-LTS-SP3 Async http client/server framework (asyncio). Security Fix(es): AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the Secure attribute for a shared cookie is not enforced. An attacker can consequently cause a shared cookie marked Secure to be sent with an unencrypted request. This issue is fixed in version 3.14.4.(CVE-2026-111063) AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, keepalive timeout handling is absent during the initial portion of a request. An attacker can keep an idle connection open indefinitely before sending any request data, consuming server connection capacity. This issue is fixed in version 3.14.4.(CVE-2026-111064) AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Max-Age processing can overflow and skip closing a connection. An attacker can consequently exhaust the connection pool temporarily until garbage collection resolves the connections. This issue is fixed in version 3.14.4.(CVE-2026-111065) AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. From 2.0.0 until 3.14.4, multipart request processing can retain an unbounded number of open file descriptors. An unauthenticated attacker can consequently exhaust file descriptors with specially crafted multipart requests when a handler uses Request.post(). This issue is fixed in version 3.14.4.(CVE-2026-111066) AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, an attacker can send an absolute-form request that causes Request.scheme to use attacker-controlled request-target scheme data instead of the connection protocol. Applications that use Request.scheme for security decisions can consequently be tricked into treating an unencrypted connection as encrypted or an encrypted connection as unencrypted. This issue is fixed in version 3.14.4.(CVE-2026-111748) AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4.(CVE-2026-111749) AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the pure Python parser accepts ambiguous HTTP request framing. An unauthenticated attacker can consequently smuggle requests when an application uses AIOHTTP_NO_EXTENSIONS or otherwise runs without a standard wheel and an intermediary interprets the framing differently. This issue is fixed in version 3.14.4.(CVE-2026-111750) An update for python-aiohttp is now available for master/openEuler-20.03-LTS-SP4/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS-Next/openEuler-24.03-LTS-SP1/openEuler-24.03-LTS-SP3/openEuler-24.03-LTS-SP4. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High python-aiohttp https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4560 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-111063 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-111064 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-111065 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-111066 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-111748 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-111749 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-111750 https://nvd.nist.gov/vuln/detail/CVE-2026-111063 https://nvd.nist.gov/vuln/detail/CVE-2026-111064 https://nvd.nist.gov/vuln/detail/CVE-2026-111065 https://nvd.nist.gov/vuln/detail/CVE-2026-111066 https://nvd.nist.gov/vuln/detail/CVE-2026-111748 https://nvd.nist.gov/vuln/detail/CVE-2026-111749 https://nvd.nist.gov/vuln/detail/CVE-2026-111750 openEuler-24.03-LTS-SP3 python-aiohttp-3.14.3-2.oe2403sp3.src.rpm python-aiohttp-debuginfo-3.14.3-2.oe2403sp3.aarch64.rpm python-aiohttp-debugsource-3.14.3-2.oe2403sp3.aarch64.rpm python-aiohttp-help-3.14.3-2.oe2403sp3.aarch64.rpm python3-aiohttp-3.14.3-2.oe2403sp3.aarch64.rpm python-aiohttp-debuginfo-3.14.3-2.oe2403sp3.x86_64.rpm python-aiohttp-debugsource-3.14.3-2.oe2403sp3.x86_64.rpm python-aiohttp-help-3.14.3-2.oe2403sp3.x86_64.rpm python3-aiohttp-3.14.3-2.oe2403sp3.x86_64.rpm AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the Secure attribute for a shared cookie is not enforced. An attacker can consequently cause a shared cookie marked Secure to be sent with an unencrypted request. This issue is fixed in version 3.14.4. 2026-10-29 CVE-2026-111063 openEuler-24.03-LTS-SP3 Medium 6.3 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N python-aiohttp security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4560 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, keepalive timeout handling is absent during the initial portion of a request. An attacker can keep an idle connection open indefinitely before sending any request data, consuming server connection capacity. This issue is fixed in version 3.14.4. 2026-10-29 CVE-2026-111064 openEuler-24.03-LTS-SP3 High 8.2 AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N python-aiohttp security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4560 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Max-Age processing can overflow and skip closing a connection. An attacker can consequently exhaust the connection pool temporarily until garbage collection resolves the connections. This issue is fixed in version 3.14.4. 2026-10-29 CVE-2026-111065 openEuler-24.03-LTS-SP3 Medium 6.9 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N python-aiohttp security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4560 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. From 2.0.0 until 3.14.4, multipart request processing can retain an unbounded number of open file descriptors. An unauthenticated attacker can consequently exhaust file descriptors with specially crafted multipart requests when a handler uses Request.post(). This issue is fixed in version 3.14.4. 2026-10-29 CVE-2026-111066 openEuler-24.03-LTS-SP3 High 8.2 AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N python-aiohttp security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4560 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, an attacker can send an absolute-form request that causes Request.scheme to use attacker-controlled request-target scheme data instead of the connection protocol. Applications that use Request.scheme for security decisions can consequently be tricked into treating an unencrypted connection as encrypted or an encrypted connection as unencrypted. This issue is fixed in version 3.14.4. 2026-10-29 CVE-2026-111748 openEuler-24.03-LTS-SP3 Medium 6.3 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N python-aiohttp security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4560 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4. 2026-10-29 CVE-2026-111749 openEuler-24.03-LTS-SP3 Low 2.3 AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N python-aiohttp security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4560 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the pure Python parser accepts ambiguous HTTP request framing. An unauthenticated attacker can consequently smuggle requests when an application uses AIOHTTP_NO_EXTENSIONS or otherwise runs without a standard wheel and an intermediary interprets the framing differently. This issue is fixed in version 3.14.4. 2026-10-29 CVE-2026-111750 openEuler-24.03-LTS-SP3 Medium 6.3 AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L python-aiohttp security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4560