{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "7.0.100"
              },
              {
                "last_affected": "7.0.109"
              },
              {
                "introduced": "8.5.38"
              },
              {
                "last_affected": "8.5.100"
              },
              {
                "introduced": "9.0.13"
              },
              {
                "fixed": "9.0.116"
              },
              {
                "introduced": "10.0.0"
              },
              {
                "fixed": "10.1.53"
              },
              {
                "introduced": "11.0.0"
              },
              {
                "fixed": "11.0.20"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "a1ea109bf367ad32361396348845ffd6e524d115"
            },
            {
              "introduced": "4b0b2f6b828d12d150b4de0b64fd6c3849dfcefb"
            },
            {
              "introduced": "706a395be7c34414d04739de69bde986661976ec"
            },
            {
              "fixed": "d2c7dce5e94d6d1d81ad7d66402140b1c1962a53"
            },
            {
              "introduced": "4c8b650437e2464c1c31c6598a263b3805b7a81f"
            },
            {
              "fixed": "f3d5786aa1bd6c2a78d666afc89b2a4570f66593"
            },
            {
              "introduced": "56e547d387ab49f688c93fe9ca082b1b5d94deed"
            },
            {
              "fixed": "1c65de6f27a3bac481514e56e3637785b65a4f2c"
            }
          ],
          "repo": "https://github.com/apache/tomcat",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29146.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "11.0.0-M1"
          },
          {
            "last_affected": "11.0.18"
          },
          {
            "introduced": "10.0.0-M1"
          },
          {
            "last_affected": "10.1.52"
          },
          {
            "introduced": "9.0.13"
          },
          {
            "last_affected": "9.0.115"
          },
          {
            "introduced": "8.5.38"
          },
          {
            "last_affected": "8.5.100"
          },
          {
            "introduced": "7.0.100"
          },
          {
            "last_affected": "7.0.109"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "11.0.0-M1"
          },
          {
            "fixed": "11.0.18"
          },
          {
            "introduced": "10.0.0-M1"
          },
          {
            "fixed": "10.1.52"
          },
          {
            "introduced": "9.0.13"
          },
          {
            "fixed": "9..115"
          },
          {
            "introduced": "8.5.38"
          },
          {
            "fixed": "8.5.100"
          },
          {
            "introduced": "7.0.100"
          },
          {
            "fixed": "7.0.109"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.\n\nUsers are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.",
  "id": "CVE-2026-29146",
  "modified": "2026-07-11T03:53:35.827460554Z",
  "published": "2026-04-09T19:21:57.289Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/09/24"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29146.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:20405"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:20406"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36787"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36788"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36789"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36790"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36876"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36877"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36878"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36879"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:37136"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:37137"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-29146"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29146.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29146"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457020"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default"
}