GHSA-4cch-wxpw-8p28 · 深刻度： medium · エコシステム： maven — Server-Side Forgery Request can be activated unmarshalling with XStream
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.15, a Server-Side Forgery Request vulnerability can be activated when unmarshalling. The vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.15. The reported vulnerability does not exist if running Java 15 or higher. No user is affected who followed the recommendation to setup XStream's Security Framework with a whitelist! Anyone relying on XStream's default blacklist can immediately switch to a whilelist for the allowed types to avoid the vulnerability. Users of XStream 1.4.14 or below who still want to use XStream default blacklist can use a workaround described in more detailed in the referenced advisories.
総合評価: CVE-2020-26258 は悪用リスクが高い（70.1/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 81.44%、100 パーセンタイル） 根拠: 公開エクスプロイトが 1 件参照されています（Exploit-DB）。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-06-15 | 93.68% | 81.44% | -12.24% |
| 2 | 2025-11-21 | 88.36% | 93.68% | +5.32% |
| 3 | 2025-11-18 | — | 88.36% | — |
EPSS の全履歴 （全 29 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 |
|---|---|---|---|---|---|---|
| 6.3 | 3.1 | MEDIUM |
|
1.8 | 4.0 | [email protected] |
| 7.7 | 3.1 | HIGH |
|
3.1 | 4.0 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-4cch-wxpw-8p28 · 深刻度： medium · エコシステム： maven — Server-Side Forgery Request can be activated unmarshalling with XStream
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-26258 not yet assigned priority: Debian including 1 source packages (libxstream-java), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-26258 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-26258 |
suse
|
medium | CVE-2020-26258 severity moderate: SUSE including 303 source package names (5.0.0-beta1.2.122:xpp3-1.1.4c-11.2.2, 5.0.0-beta1.2.122:xpp3-minimal-1.1.4c-11.2.2, …), 373 product×package rows across 30 product lines (Container suse/manager/5.0/x86_64/server, Container suse/multi-linux-manager/5.1/x86_64/server, … (30 product lines)): Known Affected 231, Fixed 142. | https://www.suse.com/security/cve/CVE-2020-26258/ |
ubuntu
|
medium | CVE-2020-26258 medium priority: Ubuntu including 1 source packages (libxstream-java), 14 status rows across 14 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, trusty, upstream, xenial): not-affected 8, released 6. | https://ubuntu.com/security/CVE-2020-26258 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apache | struts | < 6.0.0 | cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:* |
| xstream | xstream | < 1.4.15 | cpe:2.3:a:xstream:xstream:*:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |