GHSA-98qh-xjc8-98pq · 深刻度: high · エコシステム: maven — pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS
pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count. With a large enough value, the client spends an unbounded amount of CPU time inside PBKDF2 before authentication can fail. A single attempt ties up a CPU core. Repeated or concurrent attempts exhaust client CPU and can wedge connection pools. In affected versions, loginTimeout did not fully mitigate this problem. When loginTimeout expired, the caller could stop waiting, but the worker thread performing the connection attempt could continue running and burning CPU inside the SCRAM PBKDF2 computation. This issue has been patched in version 42.7.11.
総合評価: CVE-2026-42198 は中リスク(48.1/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.77%、51 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 | 0.48% | 0.77% | +0.29% |
| 2 | 2026-06-23 | 0.45% | 0.48% | +0.03% |
| 3 | 2026-06-15 | — | 0.45% | — |
EPSS の全履歴 (全 4 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 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
GHSA-98qh-xjc8-98pq · 深刻度: high · エコシステム: maven — pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-42198 not yet assigned priority: Debian including 1 source packages (libpgjava), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. | https://security-tracker.debian.org/tracker/CVE-2026-42198 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2026-42198/ |
ubuntu
|
medium | CVE-2026-42198 medium priority: Ubuntu including 1 source packages (libpgjava), 9 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): needs-triage 8, released 1. | https://ubuntu.com/security/CVE-2026-42198 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| postgresql | postgresql_jdbc_driver | >= 42.2.0, < 42.7.11 | cpe:2.3:a:postgresql:postgresql_jdbc_driver:*:*:*:*:*:*:*:* |