CVE-2026-114136 (GCVE-0-2026-114136)
Vulnerability from cvelistv5
Published
2026-10-21 20:02
Modified
2026-10-21 20:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Django REST framework is a toolkit for building Web APIs. From 3.6.4 until 3.18.2, JSONParser.parse in rest_framework/parsers.py uses the client-supplied Content-Type charset value with codecs.getreader, which accepts byte-transform codecs such as bz2_codec rather than only text encodings. A remote unauthenticated client can therefore cause a compressed JSON request body to be expanded after Django has enforced DATA_UPLOAD_MAX_MEMORY_SIZE against only the wire bytes, allowing a very small request to consume substantial per-worker memory. The default parser set is sufficient, and any reachable endpoint that accepts a JSON body is affected. This issue is fixed in version 3.18.2.
References
| URL | Tags | |
|---|---|---|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| encode | django-rest-framework |
Version: >= 3.6.4, < 3.18.2 |
{
"containers": {
"cna": {
"affected": [
{
"product": "django-rest-framework",
"vendor": "encode",
"versions": [
{
"status": "affected",
"version": "\u003e= 3.6.4, \u003c 3.18.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Django REST framework is a toolkit for building Web APIs. From 3.6.4 until 3.18.2, JSONParser.parse in rest_framework/parsers.py uses the client-supplied Content-Type charset value with codecs.getreader, which accepts byte-transform codecs such as bz2_codec rather than only text encodings. A remote unauthenticated client can therefore cause a compressed JSON request body to be expanded after Django has enforced DATA_UPLOAD_MAX_MEMORY_SIZE against only the wire bytes, allowing a very small request to consume substantial per-worker memory. The default parser set is sufficient, and any reachable endpoint that accepts a JSON body is affected. This issue is fixed in version 3.18.2."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-409",
"description": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-21T20:02:41.030Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/encode/django-rest-framework/security/advisories/GHSA-3547-9m27-7rxg",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/encode/django-rest-framework/security/advisories/GHSA-3547-9m27-7rxg"
},
{
"name": "https://github.com/encode/django-rest-framework/commit/3c2634599b26a9f789b03045118dbc276117611a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/encode/django-rest-framework/commit/3c2634599b26a9f789b03045118dbc276117611a"
},
{
"name": "https://github.com/encode/django-rest-framework/releases/tag/3.18.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/encode/django-rest-framework/releases/tag/3.18.2"
}
],
"source": {
"advisory": "GHSA-3547-9m27-7rxg",
"discovery": "UNKNOWN"
},
"title": "Django REST framework: JSONParser applies an attacker-named codec to the request stream"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-114136",
"datePublished": "2026-10-21T20:02:41.030Z",
"dateReserved": "2026-10-20T21:53:58.473Z",
"dateUpdated": "2026-10-21T20:02:41.030Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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