GHSA-g84x-mcqj-x9qq

If an application makes use of the request.read() method in an endpoint, it may be possible for an attacker to cause the server to spend a moderate amount of blocking CPU time (e.g. 1 second) while processing the request. This could potentially lead to DoS as the server would be unable to handle other requests during that time.

Patch: https://github.com/aio-libs/aiohttp/commit/dc3170b56904bdf814228fae70a5501a42a6c712 Patch: https://github.com/aio-libs/aiohttp/commit/4ed97a4e46eaf61bd0f05063245f613469700229

Database specific

{
    "github_reviewed_at": "2026-01-05T23:13:29Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-770"
    ],
    "github_reviewed": true,
    "nvd_published_at": "2026-01-06T00:15:48Z"
}

References

Affected packages

PyPI / aiohttp

Package

Name: aiohttp; View open source insights on deps.dev
Purl: pkg:pypi/aiohttp

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.13.3

Affected versions

0.*

0.1

0.2

0.3

0.4

0.4.1

0.4.2

0.4.3

0.4.4

0.5.0

0.6.0

0.6.1

0.6.2

0.6.3

0.6.4

0.6.5

0.7.0

0.7.1

0.7.2

0.7.3

0.8.0

0.8.1

0.8.2

0.8.3

0.8.4

0.9.0

0.9.1

0.9.2

0.9.3

0.10.0

0.10.1

0.10.2

0.11.0

0.12.0

0.13.0

0.13.1

0.14.0

0.14.1

0.14.2

0.14.3

0.14.4

0.15.0

0.15.1

0.15.2

0.15.3

0.16.0

0.16.1

0.16.2

0.16.3

0.16.4

0.16.5

0.16.6

0.17.0

0.17.1

0.17.2

0.17.3

0.17.4

0.18.0

0.18.1

0.18.2

0.18.3

0.18.4

0.19.0

0.20.0

0.20.1

0.20.2

0.21.0

0.21.1

0.21.2

0.21.4

0.21.5

0.21.6

0.22.0a0

0.22.0b0

0.22.0b1

0.22.0b2

0.22.0b3

0.22.0b4

0.22.0b5

0.22.0b6

0.22.0

0.22.1

0.22.2

0.22.3

0.22.4

0.22.5

1.*

1.0.0

1.0.1

1.0.2

1.0.3

1.0.5

1.1.0

1.1.1

1.1.2

1.1.3

1.1.4

1.1.5

1.1.6

1.2.0

1.3.0

1.3.1

1.3.2

1.3.3

1.3.4

1.3.5

2.*

2.0.0rc1

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

2.0.5

2.0.6

2.0.7

2.1.0

2.2.0

2.2.1

2.2.2

2.2.3

2.2.4

2.2.5

2.3.0a1

2.3.0a2

2.3.0a3

2.3.0a4

2.3.0

2.3.1a1

2.3.1

2.3.2b2

2.3.2b3

2.3.2

2.3.3

2.3.4

2.3.5

2.3.6

2.3.7

2.3.8

2.3.9

2.3.10

3.*

3.0.0b0

3.0.0b1

3.0.0b2

3.0.0b3

3.0.0b4

3.0.0

3.0.1

3.0.2

3.0.3

3.0.4

3.0.5

3.0.6

3.0.7

3.0.8

3.0.9

3.1.0

3.1.1

3.1.2

3.1.3

3.2.0

3.2.1

3.3.0a0

3.3.0

3.3.1

3.3.2a0

3.3.2

3.4.0a0

3.4.0a3

3.4.0b1

3.4.0b2

3.4.0

3.4.1

3.4.2

3.4.3

3.4.4

3.5.0a1

3.5.0b1

3.5.0b2

3.5.0b3

3.5.0

3.5.1

3.5.2

3.5.3

3.5.4

3.6.0a0

3.6.0a1

3.6.0a2

3.6.0a3

3.6.0a4

3.6.0a5

3.6.0a6

3.6.0a7

3.6.0a8

3.6.0a9

3.6.0a11

3.6.0a12

3.6.0b0

3.6.0

3.6.1b3

3.6.1b4

3.6.1

3.6.2a0

3.6.2a1

3.6.2a2

3.6.2

3.6.3

3.7.0b0

3.7.0b1

3.7.0

3.7.1

3.7.2

3.7.3

3.7.4

3.7.4.post0

3.8.0a7

3.8.0b0

3.8.0

3.8.1

3.8.2

3.8.3

3.8.4

3.8.5

3.8.6

3.9.0b0

3.9.0b1

3.9.0rc0

3.9.0

3.9.1

3.9.2

3.9.3

3.9.4rc0

3.9.4

3.9.5

3.10.0b1

3.10.0rc0

3.10.0

3.10.1

3.10.2

3.10.3

3.10.4

3.10.5

3.10.6rc0

3.10.6rc1

3.10.6rc2

3.10.6

3.10.7

3.10.8

3.10.9

3.10.10

3.10.11rc0

3.10.11

3.11.0b0

3.11.0b1

3.11.0b2

3.11.0b3

3.11.0b4

3.11.0b5

3.11.0rc0

3.11.0rc1

3.11.0rc2

3.11.0

3.11.1

3.11.2

3.11.3

3.11.4

3.11.5

3.11.6

3.11.7

3.11.8

3.11.9

3.11.10

3.11.11

3.11.12

3.11.13

3.11.14

3.11.15

3.11.16

3.11.17

3.11.18

3.12.0b0

3.12.0b1

3.12.0b2

3.12.0b3

3.12.0rc0

3.12.0rc1

3.12.0

3.12.1rc0

3.12.1

3.12.2

3.12.3

3.12.4

3.12.6

3.12.7rc0

3.12.7

3.12.8

3.12.9

3.12.10

3.12.11

3.12.12

3.12.13

3.12.14

3.12.15

3.13.0

3.13.1

3.13.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-g84x-mcqj-x9qq/GHSA-g84x-mcqj-x9qq.json"

last_known_affected_version_range

"<= 3.13.2"