Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
No advisories yet.
Tue, 29 Sep 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Urllib3
Urllib3 urllib3 |
|
| Vendors & Products |
Urllib3
Urllib3 urllib3 |
|
| Metrics |
ssvc
|
Tue, 29 Sep 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.read_chunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigger is that a malicious server returns Transfer-Encoding: chunked followed by a very long run of bytes without a newline. The attack mechanism is that a malicious HTTP server sends a very long unterminated chunk-size line. The impact is that unbounded memory allocation can exhaust the client process. This issue is fixed in version 2.8.0. | |
| Title | urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory | |
| Weaknesses | CWE-770 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-29T16:23:23.167Z
Reserved: 2026-09-24T21:43:37.208Z
Link: CVE-2026-97689
Updated: 2026-09-29T16:23:05.435Z
Status : Received
Published: 2026-09-29T16:17:18.837
Modified: 2026-09-29T17:17:16.493
Link: CVE-2026-97689
No data.
OpenCVE Enrichment
Updated: 2026-09-29T17:15:08Z
-
CWE-770
Allocation of Resources Without Limits or Throttling