CVE-2026-25500

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Source
https://cve.org/CVERecord?id=CVE-2026-25500
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25500.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-25500
Aliases
Downstream
Related
Published
2026-02-18T18:59:31.964Z
Modified
2026-03-01T02:57:19.596064Z
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
Rack's Stored XSS in Rack::Directory via javascript: filenames rendered into anchor href
Details

Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, Rack::Directory generates an HTML directory index where each file entry is rendered as a clickable link. If a file exists on disk whose basename starts with the javascript: scheme (e.g. javascript:alert(1)), the generated index contains an anchor whose href is exactly javascript:alert(1). Clicking the entry executes JavaScript in the browser (demonstrated with alert(1)). Versions 2.2.22, 3.1.20, and 3.2.5 fix the issue.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25500.json"
}
References

Affected packages

Git / github.com/rack/rack

Affected ranges

Type
GIT
Repo
https://github.com/rack/rack
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0cc2e00b22dffc33955ef912569f01e515a406e1
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.2.22"
        }
    ]
}
Type
GIT
Repo
https://github.com/rack/rack
Events
Introduced
572a42a705b423ce98ef4e81435d4f60fb0ae53d
Fixed
65044344e4780d80b409f9ba27df41b6307b5ff5
Database specific 
{
    "versions": [
        {
            "introduced": "3.0.0.beta1"
        },
        {
            "fixed": "3.1.20"
        }
    ]
}
Type
GIT
Repo
https://github.com/rack/rack
Events
Introduced
b68251c03788ff39d4a4b25424df7360426e4afd
Fixed
bb5f3555bd12b9065112353e829298b3b5623ceb
Database specific 
{
    "versions": [
        {
            "introduced": "3.2.0"
        },
        {
            "fixed": "3.2.5"
        }
    ]
}

Affected versions

0.*
0.1
0.2
0.3
1.*
1.0
1.1
1.2
1.2.1
1.3.0
1.3.0.beta
1.3.0.beta2
1.4.0
1.4.1
1.5.0
1.5.1
1.5.2
1.6.0
1.6.0.beta
1.6.0.beta2
2.*
2.0.0
2.0.0.alpha
2.0.0.rc1
2.0.1
2.1.0
2.2.0
2.2.3
2.2.3.1
2.2.4
3.*
3.0.0
3.0.0.beta1
3.0.0.rc1
v2.*
v2.2.1
v2.2.10
v2.2.11
v2.2.12
v2.2.13
v2.2.14
v2.2.15
v2.2.16
v2.2.17
v2.2.18
v2.2.19
v2.2.2
v2.2.20
v2.2.21
v2.2.5
v2.2.6
v2.2.6.1
v2.2.6.2
v2.2.6.3
v2.2.6.4
v2.2.7
v2.2.8
v2.2.8.1
v2.2.9
v3.*
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.0.4.1
v3.1.0
v3.1.10
v3.1.11
v3.1.12
v3.1.13
v3.1.14
v3.1.15
v3.1.16
v3.1.17
v3.1.18
v3.1.19
v3.1.2
v3.1.3
v3.1.4
v3.1.5
v3.1.6
v3.1.7
v3.1.8
v3.1.9
v3.2.0
v3.2.1
v3.2.2
v3.2.3
v3.2.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25500.json"