CVE-2022-33124
Withdrawn: Denial of Service in aiohttp
CVE-2022-33124 is a medium vulnerability (CVSS 5.5) in Aiohttp, published June 22, 2022. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.72%, the 53rd percentile.
AIOHTTP 3.8.1 can report a "ValueError: Invalid IPv6 URL" outcome, which can lead to a Denial of Service (DoS). NOTE: multiple third parties dispute this issue because there is no example of a context in which denial of service would occur, and many common contexts have exception handing in the calling application
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
AIOHTTP 3.8.1 can report a "ValueError: Invalid IPv6 URL" outcome, which can lead to a Denial of Service (DoS). NOTE: multiple third parties dispute this issue because there is no example of a context in which denial of service would occur, and many common contexts have exception handing in the calling application
- Record
CVE-2022-33124- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
AIOHTTP 3.8.1 can report a "ValueError: Invalid IPv6 URL" outcome, which can lead to a Denial of Service (DoS). NOTE: multiple third parties dispute this issue because there is no example of a context in which denial of service would occur, and many common contexts have exception handing in the calling application
- Record
CVE-2022-33124- Updated
- 2026-11-02
EUVDEUVD-2022-0002 No score
AIOHTTP 3.8.1 can report a "ValueError: Invalid IPv6 URL" outcome, which can lead to a Denial of Service (DoS). NOTE: multiple third parties dispute this issue because there is no example of a context in which denial of service would occur, and many common contexts have exception handing in the calling application
- Record
EUVD-2022-0002- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rwqr-c348-m5wr
Withdrawn: Denial of Service in aiohttp
Withdrawn
This advisory has been withdrawn because the maintainers of aiohttp and multiple third parties disputed the validity of the issue. There is not sufficient evidence for the claims in the original report.
Original Description
aiohttp v3.8.1 was discovered to contain an invalid IPv6 URL which can lead to a Denial of Service (DoS).
- Record
GHSA-rwqr-c348-m5wr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-rwqr-c348-m5wr
Withdrawn: Denial of Service in aiohttp
Withdrawn
This advisory has been withdrawn because the maintainers of aiohttp and multiple third parties disputed the validity of the issue. There is not sufficient evidence for the claims in the original report.
Original Description
aiohttp v3.8.1 was discovered to contain an invalid IPv6 URL which can lead to a Denial of Service (DoS).
- Record
GHSA-rwqr-c348-m5wr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVPYSEC-2022-43059
AIOHTTP 3.8.1 can report a "ValueError: Invalid IPv6 URL" outcome, which can lead to a Denial of Service (DoS). NOTE: multiple third parties dispute this issue because there is no example of a context in which denial of service would occur, and many common contexts have exception handing in the calling application
- Record
PYSEC-2022-43059- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV No score
AIOHTTP 3.8.1 can report a "ValueError: Invalid IPv6 URL" outcome, which can lead to a Denial of Service (DoS). NOTE: multiple third parties dispute this issue because there is no example of a context in which denial of service would occur, and many common contexts have exception handing in the calling application
- Record
CVE-2022-33124- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | affected | |
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
github.com/aio-libs/aiohttp/issues/6772
nvd.nist.gov/vuln/detail/CVE-2022-33124