CVE-2026-24733

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Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-24733
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24733.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-24733
Aliases
Downstream
Related
Published
2026-02-17T19:21:56.820Z
Modified
2026-04-16T04:38:34.143264920Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

Improper Input Validation vulnerability in Apache Tomcat.

Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET requests by sending a (specification invalid) HEAD request using HTTP/0.9.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112.

Older, EOL versions are also affected.

Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.

References

Affected packages

Git / github.com/apache/tomcat

Affected ranges

Type
GIT
Repo
https://github.com/apache/tomcat
Events
Introduced
3c78e95e36268dfb76db1570f0cf49104fa6eabc
Fixed
1da89d3d01aece456d622548d92055a60ff19c37
Introduced
934df02dc68e72b95a38f372017f1b89b0d13a76
Fixed
cd6d685800b0e46797325866dee2c9a78fc8e69c
Introduced
6c56147c3966fde5ae34aab2b253593e8700a28c
Fixed
692d6ffc5aa75d6804749ffcc14353c6b046fd92
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
29b07def810d335012e738b22ab44d4e232b50d1
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
10e04de1946981261a734507f4a6d953e2a206fe
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
65ddc3a3872ea41ca67fec7b6834c704b6893361
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b5a74e3c7913c560648f0ffedfbbb3ebe4318def
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
de128d72af746184e035ff1b53629f08cb141a04
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
aac670afe1226e10513021100fce8a12344743c6
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
c2c8107f0cea4755497a85990807b883b66f6b57
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
8c48678b110f3fbbe66f6dde0e45d2578fa92c29
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
9c5edb840d9413c1408e7c191bc0e1bbfcd9e07f
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
59e713216cf2256aacc54f6ba627865f356f9e4e
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
7dc5e29fe49850102261badf158752d6865311e4
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
18b014d8691909be6153ae7db022a6c35f9c93ea
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
600dc8ba5d9be7599d29bff83c342213d93b034e
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
3bd48aab236e5bf0ed1644e9f0c588fd20e503ab
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
642d3dd4d50ea1f03f9827962e4fc982a123bb78
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
24566c02fb917a6ca1b6479a60971b0d8acd895c
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
cac0e029dcced854eeca7444710e78e412dc2c2a
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
c5efed313de1a181f4f9f98f5023117f3b911257
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
ab04166fac59fcf9b3be3aab1c8b896842782d4c
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
35071e7e52f296b9187b054b0efd74121b7db3bd
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
d1dc05e934e089ea8907998cf850760017a0ed82
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
fd7f13635e6855f6ba3fead0bf37ba2fbf8b68cf
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
c7b84102600d600bcc527560d9c4d10c3fd440ab
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
d8ebf61e51b4455e3c226751e492a533f9002d48
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
aba238718ac9b149d25feaa9a14ecad3b0e3a5e2
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
fe854ab1f111396458d98fa2ab08c693ce9407e1
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
45f8fd74cdb96490fab8709263a4d862f0d429cf
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b0b074b683ed2e09ff9e9755825bfce83d303a93
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
9826be4c8368c94eab1e804b456867ca1cb766c3
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
d971ce1bdf8b8e8de93fb41454f4ce2e815ee936
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
eb684224706fe1d8ef5610c8d79dc403e1038393
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
772df65db45cfccc2aad33b9b51ef9ab14c19626
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b3a208c6d6d01c553178c5e718e750b0eb318151
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
27f7ef8cd0c637b700d564ec20f6ff92901f6b5c
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
c549413165721180b15f62033c1be6c5970028fd
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b3f5e0d88336d81a61a767fc10ab06930c9587ee
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
6f143d19d151620cd0bfe9ec2ffa429e36ad0e45
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
59c81e30e2f64f5e8c1db78c4860c51850dfb0bd
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
06d0e42e6cd70aae860f164c27d16bdfdfcdc496
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
ae109f6248e00a1952f706d6941ff930ad4466e1
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
5a67c7c58d8caf24969093e6423b7f0b43df2f6a
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
de45b3f200602b98cde70debe7f656bef0bb5fa2
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
9108a1f6776f7211f5cd27e80b7b5a6e98116b01
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
a22029c7147b83e4fbced16add744903245d1147
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
ca6ea22e9b6c47df1db85e9af80f80431c3ea19e
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
110bc36637569f7e9d191d21ac8600a8667cfc94
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
eee0dbb29048a60ee2c85ebcb9abb1750046c0bf
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
19e301275f23056e3c46ab296c87cf6e16fbe68f
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
4b03c23ad60e678c1d1a85df815fb6cd8d14ca67
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
c400bf727cbc10198d3f52c29849d18660050b0c
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
2acc5c10a303d6ae7a28c2959432aef98ae29016
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
6c03e2dc6390ccb3dbe714889706fcad2f08f4c5
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
2bf2c6a691ad9f2cf68363123419909cebbb308a
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
5301df36454fcf22081108e25199f29904cadc79
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
fafe3dc7a63c12fbb45aa076c90d6a9e7f77e5c8
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
e9935d107776339a4a48cf4e32195a763fbf8379
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
8afe2647d7801172cc304f4a47d8aad9646d2985
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
3b6de549bdf4f6486c39daa0ae8e4d4b7475b1f6
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
06977fbea3c82c3d29e544203983dd3b49a632f1
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
9ce010463a93138d596c54c67b11cdb35fc8244a
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
eb9d5f0b70a1b84fa18af30eaf358cfa9e4b87ae
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
434400d882a20e12ea03855f4bd93451bd3362c6
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
de714a23642a4d0baef342db6762a7f7a550d82c
Database specific 
{
    "versions": [
        {
            "introduced": "9.0.1"
        },
        {
            "fixed": "9.0.113"
        },
        {
            "introduced": "10.1.1"
        },
        {
            "fixed": "10.1.50"
        },
        {
            "introduced": "11.0.1"
        },
        {
            "fixed": "11.0.15"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone10"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone11"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone12"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone13"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone14"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone15"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone16"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone17"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone18"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone19"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone20"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone21"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone22"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone23"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone24"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone25"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone26"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone27"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone3"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone4"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone5"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone6"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone7"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone8"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0.0-milestone9"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone10"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone3"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone4"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone5"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone6"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone7"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone8"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0.0-milestone9"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone10"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone11"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone12"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone13"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone14"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone15"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone16"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone17"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone18"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone19"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone20"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone21"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone22"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone23"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone24"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone25"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone26"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone3"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone4"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone5"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone6"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone7"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone8"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0.0-milestone9"
        }
    ]
}

Affected versions

10.*
10.0.0-M1
10.0.0-M10
10.0.0-M2
10.0.0-M3
10.0.0-M4
10.0.0-M5
10.0.0-M6
10.0.0-M7
10.0.0-M8
10.0.0-M9
11.*
11.0.0-M1
11.0.0-M10
11.0.0-M11
11.0.0-M12
11.0.0-M13
11.0.0-M14
11.0.0-M15
11.0.0-M16
11.0.0-M17
11.0.0-M18
11.0.0-M19
11.0.0-M2
11.0.0-M20
11.0.0-M21
11.0.0-M22
11.0.0-M23
11.0.0-M24
11.0.0-M25
11.0.0-M26
11.0.0-M3
11.0.0-M4
11.0.0-M5
11.0.0-M6
11.0.0-M7
11.0.0-M8
11.0.0-M9
9.*
9.0.0-M1
9.0.0-M10
9.0.0-M11
9.0.0-M12
9.0.0-M13
9.0.0-M14
9.0.0-M15
9.0.0-M16
9.0.0-M17
9.0.0-M18
9.0.0-M19
9.0.0-M2
9.0.0-M20
9.0.0-M21
9.0.0-M22
9.0.0-M23
9.0.0-M24
9.0.0-M25
9.0.0-M26
9.0.0-M27
9.0.0-M3
9.0.0-M4
9.0.0-M5
9.0.0-M6
9.0.0-M7
9.0.0-M8
9.0.0-M9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24733.json"