Vulnerable Library - urllib3-2.6.3-py3-none-any.whl
HTTP library with thread-safe connection pooling, file post, and more.
Library home page: https://files.pythonhosted.org/packages/39/08/aaaad47bc4e9dc8c725e68f9d04865dbcb2052843ff09c97b08904852d84/urllib3-2.6.3-py3-none-any.whl
Path to dependency file: /pidex_sdk/requirements.txt
Path to vulnerable library: /tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info
Found in HEAD commit: 0f1cc4f79fdab9e4d90aa9caf963ea2e271c0183
Vulnerabilities
| Vulnerability |
Severity |
 CVSS |
Dependency |
Type |
Fixed in (urllib3 version) |
Remediation Possible** |
| CVE-2026-44432 |
 High |
8.6 |
urllib3-2.6.3-py3-none-any.whl |
Direct |
2.7.0 |
❌ |
| CVE-2026-44431 |
 Medium |
5.9 |
urllib3-2.6.3-py3-none-any.whl |
Direct |
2.7.0 |
❌ |
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2026-44432
Vulnerable Library - urllib3-2.6.3-py3-none-any.whl
HTTP library with thread-safe connection pooling, file post, and more.
Library home page: https://files.pythonhosted.org/packages/39/08/aaaad47bc4e9dc8c725e68f9d04865dbcb2052843ff09c97b08904852d84/urllib3-2.6.3-py3-none-any.whl
Path to dependency file: /pidex_sdk/requirements.txt
Path to vulnerable library: /tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info
Dependency Hierarchy:
- ❌ urllib3-2.6.3-py3-none-any.whl (Vulnerable Library)
Found in HEAD commit: 0f1cc4f79fdab9e4d90aa9caf963ea2e271c0183
Found in base branch: main
Vulnerability Details
Impact urllib3's "streaming API" (https://urllib3.readthedocs.io/en/2.7.0/advanced-usage.html#streaming-and-i-o) is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decompression based on the HTTP "Content-Encoding" header (e.g., "gzip", "deflate", "br", or "zstd"). When using the streaming API since version 2.6.0, the library decompresses only the necessary bytes, enabling partial content consumption. However, urllib3 before version 2.7.0 could still decompress the whole response instead of the requested portion in two cases: 1. During the second "HTTPResponse.read(amt=N)" call when the response was decompressed using the official "Brotli" (https://pypi.org/project/brotli/) library. 2. When "HTTPResponse.drain_conn()" was called after the response had been read and decompressed partially (compression algorithm did not matter here). These issues could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This could result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data; CWE-409) on the client side. Affected usages Applications and libraries using urllib3 versions earlier than 2.7.0 may be affected when streaming compressed responses from untrusted sources in either of these cases, unless decompression is explicitly disabled: 3. A response encoded with "br" is read incrementally with at least two "HTTPResponse.read(amt=N)" or "HTTPResponse.stream(amt=N)" calls while using the official "Brotli" (https://pypi.org/project/brotli/) library. 4. "HTTPResponse.drain_conn()" is called after response decompression has already started. Remediation Upgrade to at least urllib3 version 2.7.0 in which the library: 5. Is more efficient for reads with Brotli. 6. Always skips decompression for "HTTPResponse.drain_conn()". If upgrading is not immediately possible, the following workarounds may reduce exposure in specific cases: 7. For the Brotli-specific issue only, switch from "brotli" (https://pypi.org/project/brotli/) to "brotlicffi" (https://pypi.org/project/brotlicffi/) until you can upgrade urllib3; the official Brotli package is affected because of google/brotli#1396. 8. If your code explicitly calls "HTTPResponse.drain_conn()", call "HTTPResponse.close()" instead when connection reuse is not important. Credits The Brotli-specific issue was reported by @kimkou2024. "HTTPResponse.drain_conn()" inefficiency was reported by @Cycloctane.
Publish Date: 2026-05-12
URL: CVE-2026-44432
CVSS 3 Score Details (8.6)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-mf9v-mfxr-j63j
Release Date: 2026-05-11
Fix Resolution: 2.7.0
Step up your Open Source Security Game with Mend here
CVE-2026-44431
Vulnerable Library - urllib3-2.6.3-py3-none-any.whl
HTTP library with thread-safe connection pooling, file post, and more.
Library home page: https://files.pythonhosted.org/packages/39/08/aaaad47bc4e9dc8c725e68f9d04865dbcb2052843ff09c97b08904852d84/urllib3-2.6.3-py3-none-any.whl
Path to dependency file: /pidex_sdk/requirements.txt
Path to vulnerable library: /tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info
Dependency Hierarchy:
- ❌ urllib3-2.6.3-py3-none-any.whl (Vulnerable Library)
Found in HEAD commit: 0f1cc4f79fdab9e4d90aa9caf963ea2e271c0183
Found in base branch: main
Vulnerability Details
Impact When following cross-origin redirects for requests made using urllib3’s high-level APIs, such as "urllib3.request()", "PoolManager.request()", and "ProxyManager.request()", sensitive headers — "Authorization", "Cookie", and "Proxy-Authorization" (defined in "Retry.DEFAULT_REMOVE_HEADERS_ON_REDIRECT") — are stripped by default, as expected. However, cross-origin redirects followed from the low-level API via "ProxyManager.connection_from_url().urlopen(..., assert_same_host=False)" still forward these sensitive headers. Affected usage Applications and libraries using urllib3 versions earlier than 2.7.0 may be affected if they allow cross-origin redirects while making requests through "HTTPConnection.urlopen()" instances created via "ProxyManager.connection_from_url()". Remediation Upgrade to urllib3 version 2.7.0 or later, in which sensitive headers are stripped from redirects followed by "HTTPConnection". If upgrading is not immediately possible, avoid using this low-level redirect flow for cross-origin redirects. If appropriate for your use case, switch to "ProxyManager.request()".
Publish Date: 2026-05-12
URL: CVE-2026-44431
CVSS 3 Score Details (5.9)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: None
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-qccp-gfcp-xxvc
Release Date: 2026-05-11
Fix Resolution: 2.7.0
Step up your Open Source Security Game with Mend here
HTTP library with thread-safe connection pooling, file post, and more.
Library home page: https://files.pythonhosted.org/packages/39/08/aaaad47bc4e9dc8c725e68f9d04865dbcb2052843ff09c97b08904852d84/urllib3-2.6.3-py3-none-any.whl
Path to dependency file: /pidex_sdk/requirements.txt
Path to vulnerable library: /tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info
Found in HEAD commit: 0f1cc4f79fdab9e4d90aa9caf963ea2e271c0183
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
Vulnerable Library - urllib3-2.6.3-py3-none-any.whl
HTTP library with thread-safe connection pooling, file post, and more.
Library home page: https://files.pythonhosted.org/packages/39/08/aaaad47bc4e9dc8c725e68f9d04865dbcb2052843ff09c97b08904852d84/urllib3-2.6.3-py3-none-any.whl
Path to dependency file: /pidex_sdk/requirements.txt
Path to vulnerable library: /tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info
Dependency Hierarchy:
Found in HEAD commit: 0f1cc4f79fdab9e4d90aa9caf963ea2e271c0183
Found in base branch: main
Vulnerability Details
Impact urllib3's "streaming API" (https://urllib3.readthedocs.io/en/2.7.0/advanced-usage.html#streaming-and-i-o) is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decompression based on the HTTP "Content-Encoding" header (e.g., "gzip", "deflate", "br", or "zstd"). When using the streaming API since version 2.6.0, the library decompresses only the necessary bytes, enabling partial content consumption. However, urllib3 before version 2.7.0 could still decompress the whole response instead of the requested portion in two cases: 1. During the second "HTTPResponse.read(amt=N)" call when the response was decompressed using the official "Brotli" (https://pypi.org/project/brotli/) library. 2. When "HTTPResponse.drain_conn()" was called after the response had been read and decompressed partially (compression algorithm did not matter here). These issues could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This could result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data; CWE-409) on the client side. Affected usages Applications and libraries using urllib3 versions earlier than 2.7.0 may be affected when streaming compressed responses from untrusted sources in either of these cases, unless decompression is explicitly disabled: 3. A response encoded with "br" is read incrementally with at least two "HTTPResponse.read(amt=N)" or "HTTPResponse.stream(amt=N)" calls while using the official "Brotli" (https://pypi.org/project/brotli/) library. 4. "HTTPResponse.drain_conn()" is called after response decompression has already started. Remediation Upgrade to at least urllib3 version 2.7.0 in which the library: 5. Is more efficient for reads with Brotli. 6. Always skips decompression for "HTTPResponse.drain_conn()". If upgrading is not immediately possible, the following workarounds may reduce exposure in specific cases: 7. For the Brotli-specific issue only, switch from "brotli" (https://pypi.org/project/brotli/) to "brotlicffi" (https://pypi.org/project/brotlicffi/) until you can upgrade urllib3; the official Brotli package is affected because of google/brotli#1396. 8. If your code explicitly calls "HTTPResponse.drain_conn()", call "HTTPResponse.close()" instead when connection reuse is not important. Credits The Brotli-specific issue was reported by @kimkou2024. "HTTPResponse.drain_conn()" inefficiency was reported by @Cycloctane.
Publish Date: 2026-05-12
URL: CVE-2026-44432
CVSS 3 Score Details (8.6)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-mf9v-mfxr-j63j
Release Date: 2026-05-11
Fix Resolution: 2.7.0
Step up your Open Source Security Game with Mend here
Vulnerable Library - urllib3-2.6.3-py3-none-any.whl
HTTP library with thread-safe connection pooling, file post, and more.
Library home page: https://files.pythonhosted.org/packages/39/08/aaaad47bc4e9dc8c725e68f9d04865dbcb2052843ff09c97b08904852d84/urllib3-2.6.3-py3-none-any.whl
Path to dependency file: /pidex_sdk/requirements.txt
Path to vulnerable library: /tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info,/tmp/ws-ua_20260331025725_MIUFBE/python_UVEQHS/202603310306301/env/lib/python3.9/site-packages/urllib3-2.6.3.dist-info
Dependency Hierarchy:
Found in HEAD commit: 0f1cc4f79fdab9e4d90aa9caf963ea2e271c0183
Found in base branch: main
Vulnerability Details
Impact When following cross-origin redirects for requests made using urllib3’s high-level APIs, such as "urllib3.request()", "PoolManager.request()", and "ProxyManager.request()", sensitive headers — "Authorization", "Cookie", and "Proxy-Authorization" (defined in "Retry.DEFAULT_REMOVE_HEADERS_ON_REDIRECT") — are stripped by default, as expected. However, cross-origin redirects followed from the low-level API via "ProxyManager.connection_from_url().urlopen(..., assert_same_host=False)" still forward these sensitive headers. Affected usage Applications and libraries using urllib3 versions earlier than 2.7.0 may be affected if they allow cross-origin redirects while making requests through "HTTPConnection.urlopen()" instances created via "ProxyManager.connection_from_url()". Remediation Upgrade to urllib3 version 2.7.0 or later, in which sensitive headers are stripped from redirects followed by "HTTPConnection". If upgrading is not immediately possible, avoid using this low-level redirect flow for cross-origin redirects. If appropriate for your use case, switch to "ProxyManager.request()".
Publish Date: 2026-05-12
URL: CVE-2026-44431
CVSS 3 Score Details (5.9)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: None
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-qccp-gfcp-xxvc
Release Date: 2026-05-11
Fix Resolution: 2.7.0
Step up your Open Source Security Game with Mend here