CVE-2026-33267

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Source
https://cve.org/CVERecord?id=CVE-2026-33267
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33267.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-33267
Downstream
DEBIAN (1)
OESA (3)
UBUNTU (1)
Published
2026-07-29T07:21:52Z
Modified
2026-08-12T03:30:21Z
Severity
  • 7.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N CVSS Calculator
Summary
Apache Traffic Server: Untrusted @ headers can spoof ATS internal metadata
Details

Improper Input Validation vulnerability in Apache Traffic Server.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.14, from 10.1.0 through 10.1.3.

Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fixes the issue.

Database specific 
{
    "cna_assigner":  "apache",
    "cwe_ids":  [
        "CWE-20"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33267.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "9.2.0"
                },
                {
                    "last_affected":  "9.2.14"
                },
                {
                    "introduced":  "10.1.0"
                },
                {
                    "last_affected":  "10.1.3"
                }
            ],
            "source":  "AFFECTED_FIELD"
        },
        {
            "extracted_events":  [
                {
                    "introduced":  "9.2.0"
                },
                {
                    "fixed":  "9.2.14"
                },
                {
                    "introduced":  "10.1.0"
                },
                {
                    "fixed":  "10.1.3"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / github.com/apache/trafficserver

Affected ranges

Type
GIT
Repo
https://github.com/apache/trafficserver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f671e525110be50452f607fc1f2657f3dba7fe3b
Introduced
3fa146678bc6a061722f4ea930998ae29ad70de3
Fixed
f8be6725daee427fbf88f166f14b10cb5525b220
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "9.2.0"
        },
        {
            "fixed":  "9.2.15"
        },
        {
            "introduced":  "10.0.0"
        },
        {
            "fixed":  "10.1.4"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

10.*
10.1.0
10.1.0-rc0
10.1.0-rc1
10.1.1
10.1.1-rc0
10.1.1-rc1
10.1.2
10.1.2-rc0
10.1.3
10.1.3-rc0
3.*
3.1.2
3.3.0
3.3.1
9.*
9.2.0-rc0
9.2.1
9.2.1-rc0
9.2.10
9.2.10-rc0
9.2.11
9.2.11-rc0
9.2.12
9.2.12-rc0
9.2.13
9.2.14
9.2.14-rc0
9.2.2
9.2.2-rc0
9.2.3
9.2.3-rc0
9.2.4
9.2.4-rc0
9.2.5-rc0
9.2.6
9.2.6-rc0
9.2.7
9.2.7-rc0
9.2.8
9.2.8-rc0
9.2.9
9.2.9-rc0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33267.json"