UnratedFix available
aiohttp, python-aiohttp — security advisory
This notice tracks CVE-2026-34516 for aiohttp, python-aiohttp. Fixed versions are listed in the package details.
- Products
- aiohttp, python-aiohttp
- Affected versions
- Not specified
- Fixed versions
- 3.13.3+echo.5, 3.13.3-3+e4
- CVEs
- CVE-2026-34516
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 19:46 UTC · Revision 1
Source evidence
ECHO-ac58-cda1-4c8b
osv:ECHO-ac58-cda1-4c8b
aiohttp
Fixed versions: 3.13.3+echo.5
python-aiohttp
Fixed versions: 3.13.3-3+e4
Complete source record
{
"id": "9e3d15c5b2c822df46cc49a0ff59a317391aa8646bdeb3007133e4f3bcd73b93",
"url": "https://osv.dev/vulnerability/ECHO-ac58-cda1-4c8b",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ECHO-ac58-cda1-4c8b",
"summary": "ECHO-ac58-cda1-4c8b",
"evidence": "osv:ECHO-ac58-cda1-4c8b",
"products": [
{
"name": {
"value": "aiohttp",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.13.3+echo.5",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python-aiohttp",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.13.3-3+e4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "ECHO-ac58-cda1-4c8b",
"aliases": [
"ECHO-ac58-cda1-4c8b"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.13.3+echo.5"
}
]
}
],
"package": {
"name": "aiohttp",
"purl": "pkg:pypi/aiohttp",
"ecosystem": "Echo:PyPI"
},
"database_specific": {
"source": "https://advisory.echohq.com/osv/ECHO-ac58-cda1-4c8b.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.13.3-3+e4"
}
]
}
],
"package": {
"name": "python-aiohttp",
"purl": "pkg:deb/echo/python-aiohttp",
"ecosystem": "Echo"
},
"database_specific": {
"source": "https://advisory.echohq.com/osv/ECHO-ac58-cda1-4c8b.json"
}
}
],
"modified": "2026-10-16T08:15:03.362870152Z",
"provider": "osv",
"upstream": [
"CVE-2026-34516",
"GHSA-m5qp-6w8w-w647"
],
"references": [
"https://advisory.echohq.com/cve/CVE-2026-34516"
]
},
"related_cves": [
{
"value": "CVE-2026-34516",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 338032,
"published_at": "2026-04-03T03:00:06.849872+00:00"
}