CVE-2026-53653

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Source
https://cve.org/CVERecord?id=CVE-2026-53653
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53653.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53653
Aliases
Published
2026-07-10T16:12:01Z
Modified
2026-10-28T02:30:35Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Grav: Unauthenticated denial of service via unbounded image derivative dimensions
Details

Grav is a file-based Web platform. Prior to 1.7.53 and 2.0.0-rc.8, Grav allows an unauthenticated visitor to exhaust server memory and CPU by requesting image derivatives with oversized dimensions through URL query image actions such as forceResize in Grav::fallbackUrl, which passes request parameters to ImageMedium magic actions without a dimension or pixel ceiling. This issue is fixed in versions 1.7.53 and 2.0.0-rc.8.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53653.json"
}
References

Affected packages

Git / github.com/getgrav/grav

Affected ranges

Type
GIT
Repo
https://github.com/getgrav/grav
Events
Introduced
26a2d519c59c620e2b0a54d0baf33889d7d5db0a
Fixed
1b8758c867f4e15d532946a09f0f766f367f28c0
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d10262fd47ee9ad4f067c8ea1f25b0980ddbd205
Fixed
d9f9f0369a07ae5c96cde700c7949e1237b29cf6
Fixed
f4c0f42eea755cedad6f626b342c88d4cba72174
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2.0.0-beta.1"
                },
                {
                    "fixed": "2.0.0-rc.8"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.7.53"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "d9f9f0369a07ae5c96cde700c7949e1237b29cf6"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "f4c0f42eea755cedad6f626b342c88d4cba72174"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "1.7.53",
            "range": [
                {
                    "fixed": "d10262fd47ee9ad4f067c8ea1f25b0980ddbd205"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "2.0.0-rc.8",
            "range": [
                {
                    "fixed": "1b8758c867f4e15d532946a09f0f766f367f28c0"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.8.0
0.9.0
0.9.10
0.9.11
0.9.12
0.9.13
0.9.14
0.9.15
0.9.16
0.9.17
0.9.18
0.9.19
0.9.2
0.9.3
0.9.4
0.9.5
0.9.6
0.9.7
0.9.8
0.9.9
1.*
1.1.0-beta.1
1.1.0-beta.2
1.1.0-beta.3
1.1.0-beta.4
1.1.0-beta.5
1.1.0-rc.1
1.1.0-rc.2
1.1.0-rc.3
1.1.9-rc.1
1.1.9-rc.2
1.1.9-rc.3
1.2.0-rc.1
1.2.0-rc.2
1.2.0-rc.3
1.3.0-rc.1
1.3.0-rc.3
1.3.0-rc.4
1.3.0-rc.5
1.5.0-beta.1
1.5.0-beta.2
1.5.0-rc.1
1.6.0-beta.1
1.6.0-beta.2
1.6.0-beta.5
1.6.0-beta.6
1.6.0-beta.7
1.6.0-beta.8
1.6.0-rc.1
1.6.0-rc.2
1.6.0-rc.3
1.6.0-rc.4
1.7.0
1.7.0-beta.1
1.7.0-beta.10
1.7.0-beta.2
1.7.0-beta.3
1.7.0-beta.4
1.7.0-beta.5
1.7.0-beta.6
1.7.0-beta.7
1.7.0-beta.8
1.7.0-beta.9
1.7.0-rc.1
1.7.0-rc.10
1.7.0-rc.12
1.7.0-rc.13
1.7.0-rc.14
1.7.0-rc.15
1.7.0-rc.17
1.7.0-rc.18
1.7.0-rc.19
1.7.0-rc.2
1.7.0-rc.20
1.7.0-rc.3
1.7.0-rc.4
1.7.0-rc.5
1.7.0-rc.6
1.7.0-rc.7
1.7.0-rc.8
1.7.0-rc.9
1.7.1
1.7.10
1.7.12
1.7.13
1.7.14
1.7.15
1.7.16
1.7.17
1.7.18
1.7.19
1.7.20
1.7.21
1.7.22
1.7.23
1.7.24
1.7.25
1.7.26
1.7.26.1
1.7.27
1.7.27.1
1.7.28
1.7.29
1.7.29.1
1.7.3
1.7.30
1.7.31
1.7.32
1.7.33
1.7.34
1.7.35
1.7.36
1.7.37
1.7.37.1
1.7.38
1.7.39
1.7.39.1
1.7.4
1.7.5
1.7.51
1.7.52
1.7.6
1.7.7
1.7.8
1.7.9
2.*
2.0.0-beta.1
2.0.0-beta.2
2.0.0-beta.3
2.0.0-beta.4
2.0.0-rc.1
2.0.0-rc.2
2.0.0-rc.3
2.0.0-rc.4
2.0.0-rc.5
2.0.0-rc.6
2.0.0-rc.7

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53653.json"