CVE-2026-41293

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Source
https://cve.org/CVERecord?id=CVE-2026-41293
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-41293.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-41293
Aliases
Downstream
Related
Published
2026-05-12T15:19:35.179Z
Modified
2026-06-02T18:29:07.471429027Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Apache Tomcat: HTTP/2 request headers not validated
Details

Improper Input Validation vulnerability in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected.

Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Database specific 
{
    "cwe_ids": [
        "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41293.json",
    "cna_assigner": "apache",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "11.0.0-M1"
                },
                {
                    "last_affected": "11.0.21"
                },
                {
                    "introduced": "10.1.0-M1"
                },
                {
                    "last_affected": "10.1.54"
                },
                {
                    "introduced": "9.0.0.M1"
                },
                {
                    "last_affected": "9.0.117"
                },
                {
                    "introduced": "10.0.0-M1"
                },
                {
                    "last_affected": "10.0.27"
                },
                {
                    "introduced": "8.5.0"
                },
                {
                    "last_affected": "8.5.100"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "11.0.0-M1"
                },
                {
                    "fixed": "11.0.21"
                },
                {
                    "introduced": "10.1.0-M1"
                },
                {
                    "fixed": "10.1.54"
                },
                {
                    "introduced": "9.0.0.M1"
                },
                {
                    "fixed": "9.0.117"
                },
                {
                    "introduced": "10.0.0-M1"
                },
                {
                    "fixed": "10.0.27"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / github.com/apache/tomcat

Affected ranges

Type
GIT
Repo
https://github.com/apache/tomcat
Events
Introduced
e37b977db6f47e4380ad67114a49e8568951c953
Last affected
eddcf278ad919382608ada1898b2c5b63675c6d5
Introduced
4c8b650437e2464c1c31c6598a263b3805b7a81f
Last affected
ca8720d41f3be917dc3fcdd03fcca8d3152a13fb
Database specific 
{
    "extracted_events": [
        {
            "introduced": "8.5.0"
        },
        {
            "last_affected": "8.5.100"
        },
        {
            "introduced": "10.0.0"
        },
        {
            "last_affected": "10.0.27"
        }
    ],
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-41293.json"