CVE-2025-53643

CVE-2025-53643 (aiohttp) : Prior to 3.12.14, the Python parser is vulnerable to HTTP request smuggling due to not parsing trailer sections. If a pure-Python build (no C extensions) or AIOHTTP_NO_EXTENSIONS is used, an attacker may smuggle requests to bypass certain firewalls/proxy protections. Th...

CVE-2025-53643 AIOHTTP is vulnerable to HTTP Request/Response Smuggling through incorrect parsing of chunked trailer sections

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.12.14, the Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request. If a pure Python version of aiohttp is installed i.e. without the...

CVE-2025-53643 AIOHTTP is vulnerable to HTTP Request/Response Smuggling through incorrect parsing of chunked trailer sections

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.12.14, the Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request. If a pure Python version of aiohttp is installed i.e. without the...

0x20bf (0.0.1), 2keys (0.5.1) +2947 more potentially affected by CVE-2025-53643 via aiohttp (>=3.0.0b0, <=3.12.13)

aiohttp PYPI version =3.0.0b0, =0.0.1a0, =0.1.0, =0.5.0a0, =1.0.0, =1.0.0, =0.0.1, =1.0.2, =0.2.1, =0.1.2, =0.1.0, =0.1.0b0, =1.0.99 and more Source cves: CVE-2025-53643 Source advisory: GHSA-9548-QRRJ-X5PJ...

0x20bf (0.0.1), 2keys (0.5.1) +2947 more potentially affected by CVE-2025-53643 via aiohttp (>=3.0.0b0, <=3.12.13)

aiohttp PYPI version =3.0.0b0, =0.0.1a0, =0.1.0, =0.5.0a0, =1.0.0, =1.0.0, =0.0.1, =1.0.2, =0.2.1, =0.1.2, =0.1.0, =0.1.0b0, =1.0.99 and more Source cves: CVE-2025-53643 Source advisory: SNYK:PYTHON-AIOHTTP-10742466...

0x20bf (0.0.1), 2keys (0.5.1) +2947 more potentially affected by CVE-2025-53643 via aiohttp (>=3.0.0b0, <=3.12.13)

aiohttp PYPI version =3.0.0b0, =0.0.1a0, =0.1.0, =0.5.0a0, =1.0.0, =1.0.0, =0.0.1, =1.0.2, =0.2.1, =0.1.2, =0.1.0, =0.1.0b0, =1.0.99 and more Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

aiodocker (0.7.0), aiopogo (>=1.6.0b1, <=2.0.0) +10 more potentially affected by CVE-2025-53643 via aiohttp (2.0.7)

aiohttp PYPI version 2.0.7 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - aiodocker 0.7.0 - aiopogo =1.6.0b1, =0.1.0, =0.1.0, =0.42.4, =0.0.1, =0.9.6, =1.1.0, =1.3.3 Source cves: CVE-2025-53643 Source advisory:...

AIOHTTP is vulnerable to HTTP Request/Response Smuggling through incorrect parsing of chunked trailer sections

Summary The Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request. Impact If a pure Python version of aiohttp is installed i.e. without the usual C extensions or AIOHTTPNOEXTENSIONS is enabled, then an attacker may be able to execu...

iamine (>=0.1.5, <=0.1.6) potentially affected by CVE-2025-53643 via aiohttp (0.13.1)

aiohttp PYPI version 0.13.1 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - iamine =0.1.5, =0.1.6 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

interest (0.0.1) potentially affected by CVE-2025-53643 via aiohttp (0.14.0)

aiohttp PYPI version 0.14.0 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - interest 0.0.1 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

geoffrey (>=0.1.0, <=0.1.2) potentially affected by CVE-2025-53643 via aiohttp (0.6.4)

aiohttp PYPI version 0.6.4 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - geoffrey =0.1.0, =0.1.2 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

homeassistant (>=0.38.0, <=0.38.4), okami (>=0.1.2, <=0.1.3) +1 more potentially affected by CVE-2025-53643 via aiohttp (1.3.1)

aiohttp PYPI version 1.3.1 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - homeassistant =0.38.0, =0.1.2, =0.1.3 - pyatv 0.1.4 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

muffin (>=0.1.1, <=0.1.4) potentially affected by CVE-2025-53643 via aiohttp (0.17.2)

aiohttp PYPI version 0.17.2 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.1.1, =0.1.4 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

muffin (>=0.1.5, <=0.1.6) potentially affected by CVE-2025-53643 via aiohttp (0.17.3)

aiohttp PYPI version 0.17.3 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.1.5, =0.1.6 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

muffin (>=0.0.105, <=0.0.106) potentially affected by CVE-2025-53643 via aiohttp (0.17.0)

aiohttp PYPI version 0.17.0 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.0.105, =0.0.106 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

muffin (>=0.3.3, <=0.3.7) potentially affected by CVE-2025-53643 via aiohttp (0.18.4)

aiohttp PYPI version 0.18.4 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.3.3, =0.3.7 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

muffin (>=0.2.0, <=0.2.1) potentially affected by CVE-2025-53643 via aiohttp (0.17.4)

aiohttp PYPI version 0.17.4 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.2.0, =0.2.1 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

muffin (>=0.3.0, <=0.3.2) potentially affected by CVE-2025-53643 via aiohttp (0.18.3)

aiohttp PYPI version 0.18.3 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.3.0, =0.3.2 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

muffin (>=0.0.107, <=0.1.0) potentially affected by CVE-2025-53643 via aiohttp (0.17.1)

aiohttp PYPI version 0.17.1 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.0.107, =0.1.0 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...

muffin (>=0.4.0, <=0.4.2) potentially affected by CVE-2025-53643 via aiohttp (0.19.0)

aiohttp PYPI version 0.19.0 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.4.0, =0.4.2 Source cves: CVE-2025-53643 Source advisory: OSV:GHSA-9548-QRRJ-X5PJ...