CVE-2026-48784

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Source
https://cve.org/CVERecord?id=CVE-2026-48784
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48784.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-48784
Aliases
Downstream
CGA (2)
CLSA (5)
DEBIAN (1)
UBUNTU (1)
Published
2026-07-14T19:04:20Z
Modified
2026-10-22T02:48:44Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
Symfony: UrlGenerator Dot-Segment Encoding Skips Every Other Chained `../` or `./` → Generated URL Collapses Off-Route Under RFC 3986 Normalization
Details

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, UrlGenerator::doGenerate() used strtr() dot-segment encoding that skipped every other chained ../ or ./ segment, allowing attacker-controlled route parameters to generate URLs that collapse to a different path under RFC 3986 normalization. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-172",
        "CWE-601"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48784.json"
}
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
Fixed
6436e377f7a82a1e7b120da519c7c96a154ece2a
Introduced
aa4e97099b5a67bdc9f2387fe8d099f5c712f81c
Fixed
14ff191853ad60d640c0853b4f17fc0f3b4de0ae
Introduced
d78c5f403d7ee794993660b1d5155536edd36fc1
Fixed
d9981b6e4c77b97472845a9b7fcba5507208aacc
Introduced
2e913a829cfbbf9cb38b321bdff1806b44b192eb
Fixed
ad82cb517407582bb697e079c5ee62bf8b7af3b7
Fixed
4b63c3a3f7af04ecd79c89a594b0b02a01990b1d
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "5.4.53"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "6.0.0"
                },
                {
                    "fixed":  "6.4.41"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "7.0.0"
                },
                {
                    "fixed":  "7.4.13"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "8.0.0"
                },
                {
                    "fixed":  "8.0.13"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "4b63c3a3f7af04ecd79c89a594b0b02a01990b1d"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v5.4.53",
            "range":  [
                {
                    "fixed":  "6436e377f7a82a1e7b120da519c7c96a154ece2a"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "v6.4.41",
            "range":  [
                {
                    "fixed":  "14ff191853ad60d640c0853b4f17fc0f3b4de0ae"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "v7.4.13",
            "range":  [
                {
                    "fixed":  "d9981b6e4c77b97472845a9b7fcba5507208aacc"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

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
v5.4.52
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
v6.4.40
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
v7.4.12
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
v8.0.1
v8.0.10
v8.0.11
v8.0.12
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-2026-48784.json"