CVE-2020-26298

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-26298
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26298.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-26298
Aliases
Downstream
Related
Published
2021-01-11T19:15:13Z
Modified
2025-09-19T12:13:23.303200Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the :escape_html option was being used. This is fixed in version 3.5.1 by the referenced commit.

References

Affected packages

Git / github.com/vmg/redcarpet

Affected ranges

Type
GIT
Repo
https://github.com/vmg/redcarpet
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a699c82292b17c8e6a62e1914d5eccc252272793

Affected versions

v1.*

v1.17.2

v2.*

v2.0.0
v2.0.1
v2.1.0
v2.1.1
v2.2.0
v2.2.1
v2.2.2

v3.*

v3.0.0
v3.1.1
v3.2.0
v3.3.0
v3.3.1
v3.3.2
v3.3.3
v3.3.4
v3.4.0
v3.5.0

Database specific 

{
    "vanir_signatures": [
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "198197667677715849428623281048180277561",
                    "54830763969004594676731107425085190938",
                    "97811103998125843691871254455650728211",
                    "139603207368515949909553120480638757958",
                    "313289017949240420953274720090354965485"
                ]
            },
            "id": "CVE-2020-26298-bc2a74b8",
            "source": "https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793",
            "signature_type": "Line",
            "signature_version": "v1",
            "target": {
                "file": "ext/redcarpet/html.c"
            },
            "deprecated": false
        },
        {
            "digest": {
                "function_hash": "244524669993411248594301671481377802264",
                "length": 249.0
            },
            "id": "CVE-2020-26298-ccd1bdea",
            "source": "https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793",
            "signature_type": "Function",
            "signature_version": "v1",
            "target": {
                "file": "ext/redcarpet/html.c",
                "function": "rndr_quote"
            },
            "deprecated": false
        }
    ]
}