CVE-2026-45063

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Source
https://cve.org/CVERecord?id=CVE-2026-45063
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45063.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45063
Aliases
Downstream
Published
2026-07-14T18:28:22.074Z
Modified
2026-07-16T03:49:19.397749877Z
Severity
  • 9.1 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Symfony: Identity Spoofing via Unanchored DN Regex in X509Authenticator
Details

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, X509Authenticator extracts the user identifier from $SERVER['SSLCLIENTSDN'] with an unanchored regex that matches emailAddress= anywhere in the distinguished name, allowing an attacker with a trusted certificate containing emailAddress=victim inside another RDN value such as CN to authenticate as the victim. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45063.json",
    "cwe_ids": [
        "CWE-290"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/symfony/symfony

Affected ranges

Type
GIT
Repo
https://github.com/symfony/symfony
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Introduced
67778bf0d384584bc59bb618a91ef6b08e9153c6
Introduced
ed57652df42aef294f411ef53dcfa5d6b7da2f90
Introduced
eca48f1c4682ee0c55a2d320ca25d8292ed48f75
Fixed
eabc5f9ed7831fe6de8d609c5ebc29aed1f8ef8f
Fixed
95a951788e30c45356278f4e4472cbbf552d0eb9
Fixed
275f5cbccbcc50205206f05e599c4f57009aadb8
Fixed
06d3b2c9a8aeb5d8493738cc51e24f6a1215827c
Fixed
59ef484029601a7af06f5e06c6ed921fdcea5a0d
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.4.52"
        },
        {
            "introduced": "6.0.0-BETA1"
        },
        {
            "fixed": "6.4.40"
        },
        {
            "introduced": "7.0.0-BETA1"
        },
        {
            "fixed": "7.4.12"
        },
        {
            "introduced": "8.0.0-BETA1"
        },
        {
            "fixed": "8.0.12"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v2.*
v2.0.0
v2.0.0-RC1
v2.0.0-RC2
v2.0.0-RC3
v2.0.0-RC4
v2.0.0-RC5
v2.0.0-RC6
v2.0.0BETA1
v2.0.0BETA2
v2.0.0BETA3
v2.0.0BETA4
v2.0.0BETA5
v2.0.0PR8
v2.1.0
v2.1.0-BETA1
v2.1.0-BETA2
v2.1.0-BETA3
v2.1.0-BETA4
v2.1.0-RC1
v2.1.0-RC2
v2.2.0-BETA1
v2.2.0-BETA2
v2.3.0-BETA1
v2.3.0-BETA2
v2.4.0-BETA1
v2.4.0-BETA2
v2.5.0-BETA1
v2.5.0-BETA2
v2.6.0-BETA1
v3.*
v3.0.0
v3.0.0-BETA1
v3.2.0-BETA1
v3.2.0-RC1
v3.3.0-BETA1
v4.*
v4.0.0-BETA1
v4.0.0-BETA2
v4.0.0-BETA3
v4.0.0-BETA4
v4.2.0-BETA1
v4.2.0-BETA2
v4.3.0-BETA1
v5.*
v5.0.0-BETA1
v5.0.0-BETA2
v5.0.0-RC1
v5.1.0-BETA1
v5.2.0-BETA1
v5.2.0-BETA2
v5.2.0-BETA3
v5.3.0-BETA1
v5.3.0-BETA2
v5.3.0-BETA3
v5.3.0-BETA4
v5.4.0
v5.4.0-BETA1
v5.4.0-BETA2
v5.4.0-BETA3
v5.4.0-RC1
v5.4.1
v5.4.10
v5.4.11
v5.4.12
v5.4.13
v5.4.14
v5.4.15
v5.4.16
v5.4.17
v5.4.18
v5.4.19
v5.4.2
v5.4.20
v5.4.21
v5.4.22
v5.4.23
v5.4.24
v5.4.25
v5.4.26
v5.4.27
v5.4.28
v5.4.29
v5.4.3
v5.4.30
v5.4.31
v5.4.32
v5.4.33
v5.4.34
v5.4.35
v5.4.36
v5.4.37
v5.4.38
v5.4.39
v5.4.4
v5.4.40
v5.4.41
v5.4.42
v5.4.43
v5.4.44
v5.4.45
v5.4.46
v5.4.47
v5.4.48
v5.4.49
v5.4.5
v5.4.50
v5.4.51
v5.4.6
v5.4.7
v5.4.8
v5.4.9
v6.*
v6.0.0-BETA1
v6.0.0-BETA2
v6.0.0-BETA3
v6.0.0-RC1
v6.1.0-BETA1
v6.1.0-BETA2
v6.1.0-RC1
v6.2.0-BETA1
v6.2.0-BETA2
v6.2.0-BETA3
v6.3.0-BETA1
v6.3.0-BETA2
v6.3.0-BETA3
v6.3.0-RC1
v6.4.0
v6.4.0-BETA1
v6.4.0-BETA2
v6.4.0-BETA3
v6.4.0-RC1
v6.4.0-RC2
v6.4.1
v6.4.10
v6.4.11
v6.4.12
v6.4.13
v6.4.14
v6.4.15
v6.4.16
v6.4.17
v6.4.18
v6.4.19
v6.4.2
v6.4.20
v6.4.21
v6.4.22
v6.4.23
v6.4.24
v6.4.25
v6.4.26
v6.4.27
v6.4.28
v6.4.29
v6.4.3
v6.4.30
v6.4.31
v6.4.32
v6.4.33
v6.4.34
v6.4.35
v6.4.36
v6.4.37
v6.4.38
v6.4.39
v6.4.4
v6.4.5
v6.4.6
v6.4.7
v6.4.8
v6.4.9
v7.*
v7.0.0-BETA1
v7.0.0-BETA2
v7.0.0-BETA3
v7.0.0-RC1
v7.1.0-BETA1
v7.1.0-RC1
v7.2.0-BETA1
v7.2.0-BETA2
v7.2.0-RC1
v7.3.0-BETA1
v7.3.0-BETA2
v7.3.0-RC1
v7.4.0
v7.4.0-BETA1
v7.4.0-BETA2
v7.4.0-RC1
v7.4.0-RC2
v7.4.0-RC3
v7.4.1
v7.4.10
v7.4.11
v7.4.2
v7.4.3
v7.4.4
v7.4.5
v7.4.6
v7.4.7
v7.4.8
v7.4.9
v8.*
v8.0.0
v8.0.0-BETA1
v8.0.0-BETA2
v8.0.0-RC1
v8.0.0-RC2
v8.0.0-RC3
v8.0.1
v8.0.10
v8.0.11
v8.0.2
v8.0.3
v8.0.4
v8.0.5
v8.0.6
v8.0.7
v8.0.8
v8.0.9
Other
vPR3
vPR4
vPR5
vPR6
vPR8
vPR9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45063.json"