CVE-2026-77711

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Source
https://cve.org/CVERecord?id=CVE-2026-77711
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77711.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-77711
Aliases
  • GHSA-r2c5-3p8g-wpvw
Downstream
CLSA (3)
DEBIAN (1)
UBUNTU (1)
Published
2026-10-15T08:51:48Z
Modified
2026-10-28T02:30:48Z
Severity
  • 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
[none]
Details

When Jetty's HttpClient make a request to a server through a forward proxy, the server may reply with a 407 (Proxy Authentication Required).

The client mistakenly interprets the 407 as coming from the proxy, so it re-sends the request with the Proxy-Authentication header, which arrives to the server, that now has access to the proxy credentials.

Database specific 
{
    "cna_assigner": "eclipse",
    "cwe_ids": [
        "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77711.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "11.0.0"
                        },
                        {
                            "last_affected": "11.0.32"
                        },
                        {
                            "introduced": "10.0.0"
                        },
                        {
                            "last_affected": "10.0.32"
                        },
                        {
                            "introduced": "9.4.0"
                        },
                        {
                            "last_affected": "9.4.64"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/jetty/jetty.project

Affected ranges

Type
GIT
Repo
https://github.com/jetty/jetty.project
Events
Introduced
c8372b65bd15404de1444d68902c0455a3a69b64
Last Affected
99a51624fd3b9f5f387fce44b628abf0b491f432
Introduced
28100e8da711e44c0722ed10bd413ae862497539
Last Affected
bdf87d35991b6459dec358c6012412e329f110b3
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "12.1.0"
                },
                {
                    "last_affected": "12.1.12"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "12.0.0"
                },
                {
                    "last_affected": "12.0.38"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        }
    ]
}

Affected versions

jetty-12.*
jetty-12.0.0x
jetty-12.0.14
jetty-12.0.15
jetty-12.0.19
jetty-12.0.22
jetty-12.0.23
jetty-12.0.30
jetty-12.0.31
jetty-12.0.37
jetty-12.0.38
jetty-12.0.5
jetty-12.0.6
jetty-12.1.0.beta1
jetty-12.1.12
jetty-12.1.2
jetty-12.1.4
jetty-12.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77711.json"