When PgBouncer is configured to use "cert" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.
総合評価: CVE-2021-3935 は中リスク(53.1/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.96%、57 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 | 2026-06-15 | 0.14% | 0.96% | +0.82% |
| 2 | 2025-12-03 | 0.23% | 0.14% | -0.09% |
| 3 | 2025-11-21 | — | 0.23% | — |
EPSS の全履歴 (全 17 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 |
|---|---|---|---|---|---|---|
| 8.1 | 3.1 | HIGH |
|
2.2 | 5.9 | [email protected] |
| 5.1 | 2.0 | MEDIUM |
|
4.9 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2021-3935: 1 source package rows (pgbouncer); 6 state rows across 6 repos (3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 6, open 0. | https://security.alpinelinux.org/vuln/CVE-2021-3935 |
debian
|
not yet assigned | CVE-2021-3935 not yet assigned priority: Debian including 1 source packages (pgbouncer), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-3935 |
ubuntu
|
medium | CVE-2021-3935 medium priority: Ubuntu including 1 source packages (pgbouncer), 15 status rows across 15 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 6, ignored 4, needs-triage 4, released 1. | https://ubuntu.com/security/CVE-2021-3935 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| pgbouncer | pgbouncer | < 1.16.1 | cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 7.0 | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.pgbouncer.org/changelog.html#pgbouncer-116x | Release Notes Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2021251 | Issue Tracking Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/02/msg00016.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNPCV3KRDI5PLLLKADFVIOHACQJLZMLI/ | |
| https://lists.debian.org/debian-lts-announce/2025/05/msg00032.html |