| Summary | Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.40 through 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117 , which fix the issue. |
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| Publication Date | April 10, 2026, 5:16 a.m. |
| Registration Date | April 15, 2026, 11:34 a.m. |
| Last Update | April 14, 2026, 9:46 p.m. |
| CVSS3.1 : HIGH | |
| スコア | 7.5 |
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| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 不要 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | 高 |
| 完全性への影響(I) | なし |
| 可用性への影響(A) | なし |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 9.0.40 | 9.0.117 | |||
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 10.1.0 | 10.1.54 | |||
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 11.0.0 | 11.0.21 | |||