GHSA-wpqr-jcpx-745r · 深刻度： high · エコシステム： pip — Incorrect handling of invalid surrogate pair characters
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrogates in the same way as the standard library's `json` module does, preserving them in the parsed output. Users are advised to upgrade. There are no known workarounds for this issue.
総合評価: CVE-2022-31116 は悪用リスクが高い（73.8/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 2.28%、81 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 | 2026-07-02 | 1.83% | 2.28% | +0.45% |
| 2 | 2026-06-15 | 0.07% | 1.83% | +1.76% |
| 3 | 2026-01-14 | — | 0.07% | — |
EPSS の全履歴 （全 14 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-wpqr-jcpx-745r · 深刻度： high · エコシステム： pip — Incorrect handling of invalid surrogate pair characters
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2022-31116: 1 source package rows (py3-ujson); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. | https://security.alpinelinux.org/vuln/CVE-2022-31116 |
debian
|
not yet assigned | CVE-2022-31116 not yet assigned priority: Debian including 1 source packages (ujson), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2022-31116 |
gentoo
|
normal | CVE-2022-31116: 1 GLSA(s) (202403-03), 1 atom(s) (dev-python/ujson); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-31116 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-31116 |
suse
|
medium | CVE-2022-31116 severity moderate: SUSE including 10 source package names (python-ujson, python2-ujson-1.35-150100.3.5.1, …), 29 product×package rows across 23 product lines (HPE Helion OpenStack 8, SUSE Linux Enterprise Module for Development Tools 15 SP3, … (23 product lines)): Fixed 24, Will Not Fix 5. | https://www.suse.com/security/cve/CVE-2022-31116/ |
ubuntu
|
medium | CVE-2022-31116 medium priority: Ubuntu including 3 source packages (collada2gltf, pandas, ujson), 42 status rows across 14 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 11, ignored 10, DNE 8, not-affected 7, released 5, needed 1. | https://ubuntu.com/security/CVE-2022-31116 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| ultrajson_project | ultrajson | < 5.4.0 | cpe:2.3:a:ultrajson_project:ultrajson:*:*:*:*:*:python:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| fedoraproject | fedora | 36 | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |