CVE-2026-34520

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser the default for most installs accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4...

AZL-81761 CVE-2026-34514 affecting package python-aiohttp 3.6.2-3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the contenttype parameter in aiohttp could use this to inject extra headers or similar exploits. This issue has been patched in version 3.13.4...

DEBIAN-CVE-2026-34513

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an unbounded DNS cache could result in excessive memory usage possibly resulting in a DoS situation. This issue has been patched in version 3.13.4...

AZL-81758 CVE-2026-34513 affecting package python-aiohttp 3.6.2-3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an unbounded DNS cache could result in excessive memory usage possibly resulting in a DoS situation. This issue has been patched in version 3.13.4...

PYSEC-2026-2097

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Windows the static resource handler may expose information about a NTLMv2 remote path. This issue has been patched in version 3.13.4...

muffin (>=0.3.3, <=0.3.7) potentially affected by CVE-2026-34515 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-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

muffin (>=0.6.0, <=0.6.1) potentially affected by CVE-2026-34515 via aiohttp (0.21.2)

aiohttp PYPI version 0.21.2 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.6.0, =0.6.1 Source cves: CVE-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

aiohttp-cors (0.3.0), aslack (0.11.0) +1 more potentially affected by CVE-2026-34515 via aiohttp (0.20.2)

aiohttp PYPI version 0.20.2 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - aiohttp-cors 0.3.0 - aslack 0.11.0 - muffin =0.5.2, =0.5.12 Source cves: CVE-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

muffin (0.5.1) potentially affected by CVE-2026-34515 via aiohttp (0.20.1)

aiohttp PYPI version 0.20.1 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin 0.5.1 Source cves: CVE-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

muffin (0.5.0) potentially affected by CVE-2026-34515 via aiohttp (0.20.0)

aiohttp PYPI version 0.20.0 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin 0.5.0 Source cves: CVE-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

muffin (>=0.4.0, <=0.4.2) potentially affected by CVE-2026-34515 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-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

muffin (>=0.3.0, <=0.3.2) potentially affected by CVE-2026-34515 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-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

muffin (>=0.2.0, <=0.2.1) potentially affected by CVE-2026-34515 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-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

muffin (>=0.1.5, <=0.1.6) potentially affected by CVE-2026-34515 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-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

muffin (>=0.1.1, <=0.1.4) potentially affected by CVE-2026-34515 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-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

aioauth-client (>=0.9.2, <=0.9.3), aiohttp-validate (>=0.1.0, <=1.0.0) +10 more potentially affected by CVE-2026-34515 via aiohttp (1.0.5)

aiohttp PYPI version 1.0.5 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - aioauth-client =0.9.2, =0.1.0, =0.0.7, =0.17.0b1, =0.32.0, =1.2.0, =0.10.3, =0.1.8a1, =1.0.0a2, =1.0.0a3 Source cves: CVE-2026-34515 Source...

muffin (>=0.10.0, <=0.10.2), mutaprops (>=0.6.0, <=0.6.1) potentially affected by CVE-2026-34515 via aiohttp (1.0.2)

aiohttp PYPI version 1.0.2 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - muffin =0.10.0, =0.6.0, =0.6.1 Source cves: CVE-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

aio-tinder (>=0.1.7, <=0.1.8) potentially affected by CVE-2026-34515 via aiohttp (1.0.1)

aiohttp PYPI version 1.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - aio-tinder =0.1.7, =0.1.8 Source cves: CVE-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

aio-tinder (>=0.1.1, <=0.1.3), muffin (0.9.0) +3 more potentially affected by CVE-2026-34515 via aiohttp (0.22.5)

aiohttp PYPI version 0.22.5 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - aio-tinder =0.1.1, =0.0.3, =0.1.0, =0.4.0 Source cves: CVE-2026-34515 Source advisory: OSV:PYSEC-2026-2097...

s2aio (>=1.12.0, <=1.14.0) potentially affected by CVE-2026-34515 via aiohttp (0.22.4)

aiohttp PYPI version 0.22.4 is affected by a known vulnerability. The following packages have a transitive dependency on aiohttp and may be impacted: - s2aio =1.12.0, =1.14.0 Source cves: CVE-2026-34515 Source advisory: OSV:PYSEC-2026-2097...