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Related vulnerabilities
GHSA-5W7Q-77MV-V69F
Vulnerability from github – Published: 2026-06-26 20:51 – Updated: 2026-06-26 20:51
VLAI
Summary
python-socketio: Binary attachment accumulation can cause denial of service
Details
Impact
The python-socketio server stores binary EVENT and ACK messages in memory while it waits to receive their binary attachments. Once all the attachments are received, these messages are then processed. An attacker can submit a binary message and intentionally omit sending one or more of its attachments to cause the message along with the partial list of received attachments to stay in memory for a long time.
Patches
Version 5.16.2 takes the following measures to address this issue: - Binary packets are only accepted from authenticated clients. - When a client disconnects, the server checks if there is a partial binary message being held for the client and deletes it.
Severity
7.5 (High)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 5.16.1"
},
"package": {
"ecosystem": "PyPI",
"name": "python-socketio"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.16.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-48804"
],
"database_specific": {
"cwe_ids": [
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-26T20:51:58Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Impact\nThe python-socketio server stores binary `EVENT` and `ACK` messages in memory while it waits to receive their binary attachments. Once all the attachments are received, these messages are then processed. An attacker can submit a binary message and intentionally omit sending one or more of its attachments to cause the message along with the partial list of received attachments to stay in memory for a long time.\n\n### Patches\nVersion 5.16.2 takes the following measures to address this issue:\n- Binary packets are only accepted from authenticated clients.\n- When a client disconnects, the server checks if there is a partial binary message being held for the client and deletes it.",
"id": "GHSA-5w7q-77mv-v69f",
"modified": "2026-06-26T20:51:58Z",
"published": "2026-06-26T20:51:58Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/miguelgrinberg/python-socketio/security/advisories/GHSA-5w7q-77mv-v69f"
},
{
"type": "PACKAGE",
"url": "https://github.com/miguelgrinberg/python-socketio"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "python-socketio: Binary attachment accumulation can cause denial of service"
}
OPENSUSE-SU-2026:11171-1
Vulnerability from csaf_opensuse - Published: 2026-07-01 00:00 - Updated: 2026-07-01 00:00Summary
python311-python-socketio-5.16.3-1.1 on GA media
Severity
Moderate
Notes
Title of the patch: python311-python-socketio-5.16.3-1.1 on GA media
Description of the patch: These are all security issues fixed in the python311-python-socketio-5.16.3-1.1 package on the GA media of openSUSE Tumbleweed.
Patchnames: openSUSE-Tumbleweed-2026-11171
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
7.5 (High)
Affected products
Recommended
12 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: openSUSE Tumbleweed:python311-python-socketio-5.16.3-1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python311-python-socketio-5.16.3-1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python311-python-socketio-5.16.3-1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python311-python-socketio-5.16.3-1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python313-python-socketio-5.16.3-1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python313-python-socketio-5.16.3-1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python313-python-socketio-5.16.3-1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python313-python-socketio-5.16.3-1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python314-python-socketio-5.16.3-1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python314-python-socketio-5.16.3-1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python314-python-socketio-5.16.3-1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:python314-python-socketio-5.16.3-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
References
5 references
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}
PYSEC-2026-3042
Vulnerability from pysec - Published: 2026-07-13 15:46 - Updated: 2026-07-13 16:06
VLAI
Details
Impact
The python-socketio server stores binary EVENT and ACK messages in memory while it waits to receive their binary attachments. Once all the attachments are received, these messages are then processed. An attacker can submit a binary message and intentionally omit sending one or more of its attachments to cause the message along with the partial list of received attachments to stay in memory for a long time.
Patches
Version 5.16.2 takes the following measures to address this issue: - Binary packets are only accepted from authenticated clients. - When a client disconnects, the server checks if there is a partial binary message being held for the client and deletes it.
Severity
7.5 (High)
Impacted products
| Name | purl | python-socketio | pkg:pypi/python-socketio |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "python-socketio",
"purl": "pkg:pypi/python-socketio"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.16.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1.0",
"0.2.0",
"0.3.0",
"0.4.0",
"0.4.1",
"0.4.2",
"0.5.0",
"0.5.1",
"0.5.2",
"0.6.0",
"0.6.1",
"0.7.0",
"0.8.0",
"0.8.1",
"0.8.2",
"0.9.0",
"0.9.1",
"0.9.2",
"1.0",
"1.1",
"1.2",
"1.3",
"1.4",
"1.4.1",
"1.4.2",
"1.4.3",
"1.4.4",
"1.5.0",
"1.5.1",
"1.6.0",
"1.6.1",
"1.6.2",
"1.6.3",
"1.7.0",
"1.7.1",
"1.7.2",
"1.7.3",
"1.7.4",
"1.7.5",
"1.7.6",
"1.7.7",
"1.8.0",
"1.8.1",
"1.8.2",
"1.8.3",
"1.8.4",
"1.9.0",
"2.0.0",
"2.1.0",
"2.1.1",
"2.1.2",
"3.0.0",
"3.0.1",
"3.1.0",
"3.1.1",
"3.1.2",
"4.0.0",
"4.0.1",
"4.0.2",
"4.0.3",
"4.1.0",
"4.2.0",
"4.2.1",
"4.3.0",
"4.3.1",
"4.4.0",
"4.5.0",
"4.5.1",
"4.6.0",
"4.6.1",
"5.0.0",
"5.0.1",
"5.0.2",
"5.0.3",
"5.0.4",
"5.1.0",
"5.10.0",
"5.11.0",
"5.11.1",
"5.11.2",
"5.11.3",
"5.11.4",
"5.12.0",
"5.12.1",
"5.13.0",
"5.14.0",
"5.14.1",
"5.14.2",
"5.14.3",
"5.15.0",
"5.15.1",
"5.16.0",
"5.16.1",
"5.2.0",
"5.2.1",
"5.3.0",
"5.4.0",
"5.4.1",
"5.5.0",
"5.5.1",
"5.5.2",
"5.6.0",
"5.7.0",
"5.7.1",
"5.7.2",
"5.8.0",
"5.9.0"
]
}
],
"aliases": [
"CVE-2026-48804",
"GHSA-5w7q-77mv-v69f"
],
"details": "### Impact\nThe python-socketio server stores binary `EVENT` and `ACK` messages in memory while it waits to receive their binary attachments. Once all the attachments are received, these messages are then processed. An attacker can submit a binary message and intentionally omit sending one or more of its attachments to cause the message along with the partial list of received attachments to stay in memory for a long time.\n\n### Patches\nVersion 5.16.2 takes the following measures to address this issue:\n- Binary packets are only accepted from authenticated clients.\n- When a client disconnects, the server checks if there is a partial binary message being held for the client and deletes it.",
"id": "PYSEC-2026-3042",
"modified": "2026-07-13T16:06:05.778623Z",
"published": "2026-07-13T15:46:24.787391Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/miguelgrinberg/python-socketio/security/advisories/GHSA-5w7q-77mv-v69f"
},
{
"type": "PACKAGE",
"url": "https://github.com/miguelgrinberg/python-socketio"
},
{
"type": "PACKAGE",
"url": "https://pypi.org/project/python-socketio"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-5w7q-77mv-v69f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48804"
}
],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "python-socketio: Binary attachment accumulation can cause denial of service"
}