CVE-2026-128125

Source
https://cve.org/CVERecord?id=CVE-2026-128125
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-128125.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-128125
Aliases
  • GHSA-5pv8-vvhc-h7jv
Downstream
Published
2026-11-13T20:25:56Z
Modified
2026-11-14T10:45:35Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
AIOHTTP: Unbounded cookie storage in client CookieJar
Details

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Set-Cookie parsing treats unrecognized name=value attributes as additional cookies, while CookieJar does not limit the number of cookies stored or sent. A malicious server can make an aiohttp client accumulate a very large cookie set, consume memory and CPU repeatedly across redirects, and construct an excessively large Cookie header for later requests to the same domain. This issue is fixed in version 3.14.4.

Database specific
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-1325"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128125.json"
}
References

Affected packages

Git / github.com/aio-libs/aiohttp

Affected ranges

Type
GIT
Repo
https://github.com/aio-libs/aiohttp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Fixed
Fixed
Database specific
Show details
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "3.14.4"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "6963ee0befec1502b6bb7b4db6c72d044c08f4fa"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "b1f6c87b2bd3bd80f2b6c22ff46e11d00921e412"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v3.14.4",
            "range": [
                {
                    "fixed": "0c5e5e1c2256c2f46fa83912d01df7632c3b26cd"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.15.2
0.8.2
1.*
1.3.0
2.*
2.0.0
2.0.0rc1
4v0.*
4v0.21.6
v.*
v.0.6.5
v0.*
v0.1
v0.10.0
v0.10.1
v0.11.0
v0.12.0
v0.13.0
v0.13.1
v0.14.0
v0.14.1
v0.14.2
v0.14.3
v0.14.4
v0.15.0
v0.15.1
v0.15.2
v0.15.3
v0.16.0
v0.16.1
v0.16.2
v0.16.3
v0.17.0
v0.18.0
v0.19.0
v0.2
v0.20.0
v0.20.1
v0.21.0
v0.22.0
v0.22.0b0
v0.22.0b1
v0.22.0b2
v0.22.0b3
v0.22.0b4
v0.22.0b5
v0.22.0b6
v0.22.1
v0.3
v0.4
v0.4.1
v0.4.2
v0.5.0
v0.6.1
v0.6.2
v0.6.3
v0.6.4
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.8.0
v0.8.1
v0.8.3
v0.8.4
v0.9.0
v0.9.1
v0.9.2
v1.*
v1.0.0
v1.0.1
v1.1.0
v1.1.1
v1.2.0
v2.*
v2.1.0
v2.2.0
v2.3.0
v2.3.0a1
v2.3.0a2
v2.3.0a3
v2.3.0a4
v3.*
v3.0.0b0
v3.0.0b1
v3.0.0b2
v3.0.0b3
v3.0.0b4
v3.1.0
v3.10.0
v3.10.0b0
v3.10.0b1
v3.10.0rc0
v3.11.0
v3.11.0b0
v3.11.0b1
v3.11.0b2
v3.11.0b3
v3.11.0b4
v3.11.0b5
v3.11.0rc0
v3.11.0rc1
v3.11.0rc2
v3.12.0
v3.12.0b0
v3.12.0b1
v3.12.0b2
v3.12.0b3
v3.12.0rc0
v3.12.0rc1
v3.13.0
v3.14.0
v3.14.1
v3.14.2
v3.14.3
v3.2.0
v3.4.0
v3.4.0a0
v3.4.0a3
v3.4.0b1
v3.4.0b2
v3.5.0
v3.5.0a1
v3.5.0b1
v3.5.0b2
v3.5.0b3
v3.5.1
v3.5.2
v3.5.3
v3.5.4
v3.6.0
v3.6.0a0
v3.6.0a1
v3.6.0a10
v3.6.0a11
v3.6.0a12
v3.6.0a2
v3.6.0a3
v3.6.0a4
v3.6.0a5
v3.6.0a6
v3.6.0a7
v3.6.0a8
v3.6.0a9
v3.6.0b0
v3.6.1
v3.6.1b3
v3.6.1b4
v3.6.2
v3.6.2a1
v3.6.2a2
v3.7.0
v3.7.0b0
v3.7.0b1
v3.7.1
v3.8.0
v3.9.0
v3.9.0b0
v3.9.0b1
v3.9.0rc0
v4.*
v4.0.0a0
v4.0.0a1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-128125.json"