GHSA-fh3h-vg37-cc95 · 深刻度: medium · エコシステム: pip — WebOb: Location header normalization during redirect leads to open redirect - again
WebOb provides objects for HTTP requests and responses. Prior to 1.8.10, the normalization of the HTTP Location header during a redirect is vulnerable to an open redirect: WebOb joins the redirect target to the request URI using Python's urljoin, and since Python 3.10 the underlying urlsplit strips ASCII tab, carriage return, and newline characters before parsing, so a redirect target containing such characters can be reinterpreted as a protocol-relative URL whose authority is an attacker-controlled host. This bypasses the CVE-2024-42353 fix that escaped a leading double slash, allowing an attacker who influences the redirect location to send users to an arbitrary external site instead of the intended one. This vulnerability is fixed in 1.8.10.
総合評価: CVE-2026-44889 は低リスク(26.8/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.17%、7 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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 | 2026-06-23 | 0.04% | 0.17% | +0.13% |
| 2 | 2026-06-12 | — | 0.04% | — |
EPSS の全履歴 (全 2 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 |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
GHSA-fh3h-vg37-cc95 · 深刻度: medium · エコシステム: pip — WebOb: Location header normalization during redirect leads to open redirect - again
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-44889 not yet assigned priority: Debian including 1 source packages (python-webob), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. | https://security-tracker.debian.org/tracker/CVE-2026-44889 |
suse
|
medium | CVE-2026-44889 severity moderate: SUSE including 7 source package names (python-WebOb, python-WebOb-doc-1.8.10-1.1, …), 8 product×package rows across 5 product lines (SUSE Linux Enterprise Module for Basesystem 15 SP7, SUSE Linux Enterprise Module for Package Hub 15 SP7, … (5 product lines)): Fixed 4, First Fixed 3, Known Not Affected 1. | https://www.suse.com/security/cve/CVE-2026-44889/ |
ubuntu
|
medium | CVE-2026-44889 medium priority: Ubuntu including 1 source packages (python-webob), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, resolute, upstream, xenial): needs-triage 8. | https://ubuntu.com/security/CVE-2026-44889 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| pylonsproject | webob | < 1.8.10 | cpe:2.3:a:pylonsproject:webob:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/Pylons/webob/security/advisories/GHSA-fh3h-vg37-cc95 | Mitigation Vendor Advisory |