Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/50433?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/50433?format=api", "purl": "pkg:pypi/urllib3@2.6.0", "type": "pypi", "namespace": "", "name": "urllib3", "version": "2.6.0", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "2.7.0", "latest_non_vulnerable_version": "2.7.0", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/37337?format=api", "vulnerability_id": "VCID-3wae-93ac-7qgn", "summary": "urllib3 is an HTTP client library for Python. From 2.6.0 to before 2.7.0, urllib3 could decompress the whole response instead of the requested portion (1) during the second HTTPResponse.read(amt=N) call when the response was decompressed using the official Brotli library or (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) on the client side. This vulnerability is fixed in 2.7.0.", "references": [ { "reference_url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-mf9v-mfxr-j63j", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-mf9v-mfxr-j63j" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/50437?format=api", "purl": "pkg:pypi/urllib3@2.7.0", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/urllib3@2.7.0" } ], "aliases": [ "CVE-2026-44432", "GHSA-mf9v-mfxr-j63j", "PYSEC-2026-142" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-3wae-93ac-7qgn" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/37336?format=api", "vulnerability_id": "VCID-ueb4-ur9q-u3e1", "summary": "urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connection_from_url().urlopen(..., assert_same_host=False) still forward these sensitive headers. This vulnerability is fixed in 2.7.0.", "references": [ { "reference_url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N" } ], "url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/50437?format=api", "purl": "pkg:pypi/urllib3@2.7.0", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/urllib3@2.7.0" } ], "aliases": [ "CVE-2026-44431", "GHSA-qccp-gfcp-xxvc", "PYSEC-2026-141" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ueb4-ur9q-u3e1" } ], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/49358?format=api", "vulnerability_id": "VCID-m59a-k7rj-t7bh", "summary": "urllib3 allows an unbounded number of links in the decompression chain\nurllib3 supports chained HTTP encoding algorithms for response content according to RFC 9110 (e.g., `Content-Encoding: gzip, zstd`).\n\nHowever, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leading to high CPU usage and massive memory allocation for the decompressed data.", "references": [ { "reference_url": "https://github.com/urllib3/urllib3", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/urllib3/urllib3" }, { "reference_url": "https://github.com/urllib3/urllib3/commit/24d7b67eac89f94e11003424bcf0d8f7b72222a8", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/urllib3/urllib3/commit/24d7b67eac89f94e11003424bcf0d8f7b72222a8" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66418", "reference_id": "CVE-2025-66418", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66418" }, { "reference_url": "https://github.com/advisories/GHSA-gm62-xv2j-4w53", "reference_id": "GHSA-gm62-xv2j-4w53", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-gm62-xv2j-4w53" }, { "reference_url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-gm62-xv2j-4w53", "reference_id": "GHSA-gm62-xv2j-4w53", "reference_type": "", "scores": [], "url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-gm62-xv2j-4w53" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/50433?format=api", "purl": "pkg:pypi/urllib3@2.6.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3wae-93ac-7qgn" }, { "vulnerability": "VCID-ueb4-ur9q-u3e1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/urllib3@2.6.0" } ], "aliases": [ "CVE-2025-66418", "GHSA-gm62-xv2j-4w53" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-m59a-k7rj-t7bh" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/49357?format=api", "vulnerability_id": "VCID-xb89-hmrf-1bd5", "summary": "urllib3 streaming API improperly handles highly compressed data\nurllib3's [streaming API](https://urllib3.readthedocs.io/en/2.5.0/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.\n\nWhen streaming a compressed response, urllib3 can perform decoding or decompression based on the HTTP `Content-Encoding` header (e.g., `gzip`, `deflate`, `br`, or `zstd`). The library must read compressed data from the network and decompress it until the requested chunk size is met. Any resulting decompressed data that exceeds the requested amount is held in an internal buffer for the next read operation.\n\nThe decompression logic could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This can result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data; CWE-409) on the client side, even if the application only requested a small chunk of data.", "references": [ { "reference_url": "https://github.com/urllib3/urllib3", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/urllib3/urllib3" }, { "reference_url": "https://github.com/urllib3/urllib3/commit/c19571de34c47de3a766541b041637ba5f716ed7", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/urllib3/urllib3/commit/c19571de34c47de3a766541b041637ba5f716ed7" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66471", "reference_id": "CVE-2025-66471", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66471" }, { "reference_url": "https://github.com/advisories/GHSA-2xpw-w6gg-jr37", "reference_id": "GHSA-2xpw-w6gg-jr37", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-2xpw-w6gg-jr37" }, { "reference_url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-2xpw-w6gg-jr37", "reference_id": "GHSA-2xpw-w6gg-jr37", "reference_type": "", "scores": [], "url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-2xpw-w6gg-jr37" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/50433?format=api", "purl": "pkg:pypi/urllib3@2.6.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3wae-93ac-7qgn" }, { "vulnerability": "VCID-ueb4-ur9q-u3e1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/urllib3@2.6.0" } ], "aliases": [ "CVE-2025-66471", "GHSA-2xpw-w6gg-jr37" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-xb89-hmrf-1bd5" } ], "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/urllib3@2.6.0" }