GHSA-rmr5-cpv2-vgjf · 深刻度： high · エコシステム： maven — Denial of Service by injecting highly recursive collections or maps in XStream
XStream is an open source java library to serialize objects to XML and back again. Versions prior to 1.4.19 may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. XStream 1.4.19 monitors and accumulates the time it takes to add elements to collections and throws an exception if a set threshold is exceeded. Users are advised to upgrade as soon as possible. Users unable to upgrade may set the NO_REFERENCE mode to prevent recursion. See GHSA-rmr5-cpv2-vgjf for further details on a workaround if an upgrade is not possible.
総合評価: CVE-2021-43859 は悪用リスクが高い（77.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 7.66%、94 パーセンタイル） 根拠: 公開エクスプロイトが 2 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 ↗ | |
| — | 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 | 2026-07-18 | 7.93% | 7.66% | -0.27% |
| 2 | 2026-06-27 | 8.15% | 7.93% | -0.22% |
| 3 | 2026-06-15 | — | 8.15% | — |
EPSS の全履歴 （全 39 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-rmr5-cpv2-vgjf · 深刻度： high · エコシステム： maven — Denial of Service by injecting highly recursive collections or maps in XStream
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2021-43859 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-2021-43859 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2021-43859 |
suse
|
medium | CVE-2021-43859 severity moderate: SUSE including 241 source package names (5.0.0-beta1.2.122:xstream-1.4.19-3.18.2, 5.1.0.6.40:xstream-1.4.19-3.18.2, …), 274 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 43. | https://www.suse.com/security/cve/CVE-2021-43859/ |
ubuntu
|
medium | CVE-2021-43859 medium priority: Ubuntu including 1 source packages (libxstream-java), 14 status rows across 14 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 8, ignored 6. | https://ubuntu.com/security/CVE-2021-43859 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| jenkins | jenkins | < 2.319.3 | cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:*:*:* |
| jenkins | jenkins | >= 2.321, < 2.334 | cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:*:*:* |
| xstream | xstream | < 1.4.19 | cpe:2.3:a:xstream:xstream:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| oracle | commerce_guided_search | 11.3.2 | cpe:2.3:a:oracle:commerce_guided_search:11.3.2:*:*:*:*:*:*:* |
| oracle | communications_brm_-_elastic_charging_engine | < 12.0.0.4.6 | cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:*:*:*:*:*:*:*:* |
| oracle | communications_brm_-_elastic_charging_engine | 12.0.0.5.0 | cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:12.0.0.5.0:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_automated_test_suite | 1.9.0 | cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:* |
| oracle | communications_diameter_intelligence_hub | >= 8.0.0, <= 8.1.0 | cpe:2.3:a:oracle:communications_diameter_intelligence_hub:*:*:*:*:*:*:*:* |
| oracle | communications_diameter_intelligence_hub | >= 8.2.0, <= 8.2.6 | cpe:2.3:a:oracle:communications_diameter_intelligence_hub:*:*:*:*:*:*:*:* |
| oracle | communications_policy_management | 12.6.0.0.0 | cpe:2.3:a:oracle:communications_policy_management:12.6.0.0.0:*:*:*:*:*:*:* |
| oracle | flexcube_private_banking | 12.1.0 | cpe:2.3:a:oracle:flexcube_private_banking:12.1.0:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 16.0.6 | cpe:2.3:a:oracle:retail_xstore_point_of_service:16.0.6:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 17.0.4 | cpe:2.3:a:oracle:retail_xstore_point_of_service:17.0.4:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 18.0.3 | cpe:2.3:a:oracle:retail_xstore_point_of_service:18.0.3:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 19.0.2 | cpe:2.3:a:oracle:retail_xstore_point_of_service:19.0.2:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 20.0.1 | cpe:2.3:a:oracle:retail_xstore_point_of_service:20.0.1:*:*:*:*:*:*:* |