GHSA-mf9v-mfxr-j63j · 深刻度： high · エコシステム： pip — urllib3: Decompression-bomb safeguards bypassed in parts of the streaming API
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.
総合評価: CVE-2026-44432 は中リスク（52.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.68%、48 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-30 | 0.37% | 0.68% | +0.31% |
| 2 | 2026-06-15 | 0.02% | 0.37% | +0.35% |
| 3 | 2026-05-22 | — | 0.02% | — |
EPSS の全履歴 （全 5 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.9 | 4.0 | HIGH |
|
— | — | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
GHSA-mf9v-mfxr-j63j · 深刻度： high · エコシステム： pip — urllib3: Decompression-bomb safeguards bypassed in parts of the streaming API
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2026-44432 unimportant priority: Debian including 1 source packages (python-urllib3), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2026-44432 |
suse
|
medium | CVE-2026-44432 severity moderate: SUSE including 9 source package names (python-urllib3, python-urllib3_1, …), 66 product×package rows across 25 product lines (SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS, … (25 product lines)): Known Not Affected 66. | https://www.suse.com/security/cve/CVE-2026-44432/ |
ubuntu
|
medium | CVE-2026-44432 medium priority: Ubuntu including 2 source packages (python-pip, python-urllib3), 17 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): needs-triage 8, not-affected 7, released 2. | https://ubuntu.com/security/CVE-2026-44432 |