CVE-2026-63771

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Source
https://cve.org/CVERecord?id=CVE-2026-63771
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63771.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-63771
Aliases
  • GHSA-c533-9qwm-8w5h
Downstream
Published
2026-07-20T18:57:15.799Z
Modified
2026-07-22T05:32:58.799391991Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Adminer < 5.4.3 Cookie Injection via X-Forwarded-Prefix Header
Details

Adminer before 5.4.3 contains a cookie injection vulnerability that allows attackers to manipulate cookie attributes by injecting arbitrary values through the unsanitized X-Forwarded-Prefix HTTP header used in Set-Cookie path attributes. Attackers can exploit a misconfigured reverse proxy to downgrade SameSite protection and enable cross-origin authenticated requests, bypassing cookie security controls.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63771.json",
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-113"
    ]
}
References

Affected packages

Git / github.com/vrana/adminer

Affected ranges

Type
GIT
Repo
https://github.com/vrana/adminer
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
189869c4a8f0f897848cdb58493b572178084d6c
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.4.3"
        }
    ]
}

Affected versions

v3.*
v3.0.0
v3.0.1
v3.1.0
v3.2.0
v3.2.1
v3.2.2
v3.3.0
v3.3.1
v3.3.2
v3.3.3
v3.3.4
v3.4.0
v3.5.0
v3.5.1
v3.6.0
v3.6.1
v3.6.2
v3.6.3
v3.6.4
v3.7.0
v3.7.1
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.0.3
v4.1.0
v4.16.0
v4.17.0
v4.17.1
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.2.5
v4.3.0
v4.3.1
v4.4.0
v4.5.0
v4.6.0
v4.6.1
v4.6.2
v4.6.3
v4.7.0
v4.7.1
v4.7.2
v4.7.3
v4.7.4
v4.7.5
v4.7.7
v4.7.8
v4.7.9
v4.8.0
v4.8.1
v5.*
v5.0.0
v5.0.1
v5.0.2
v5.0.3
v5.0.4
v5.0.5
v5.0.6
v5.1.0
v5.1.1
v5.2.0
v5.2.1
v5.3.0
v5.4.0
v5.4.1
v5.4.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63771.json"