CVE-2026-91942

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Source
https://cve.org/CVERecord?id=CVE-2026-91942
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91942.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91942
Aliases
  • GHSA-7g3g-vhm6-79f3
Published
2026-09-15T15:18:02Z
Modified
2026-10-28T02:30:36Z
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
crawl4ai before 0.9.3 Cross-Site Scripting via innerHTML
Details

crawl4ai before 0.9.3 contains a DOM-based cross-site scripting vulnerability in the Docker Playground UI that assigns untrusted crawl results to element.innerHTML. Attackers can craft malicious PDFs with event-handler markup to execute JavaScript in the Playground origin and steal API tokens from sessionStorage for authenticated API abuse.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91942.json"
}
References

Affected packages

Git / github.com/unclecode/crawl4ai

Affected ranges

Type
GIT
Repo
https://github.com/unclecode/crawl4ai
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4bcd5fa8a56000ce103dd499e8ecdff2439f3e9c
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "0.9.3"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "4ai"
                },
                {
                    "fixed":  "0.9.3"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

0.*
0.3.4
docker-rebuild-v0.*
docker-rebuild-v0.8.6
docker-rebuild-v0.8.7
docker-rebuild-v0.8.8
docker-rebuild-v0.8.9
docker-rebuild-v0.9.0
docker-rebuild-v0.9.1
docker-rebuild-v0.9.2
v.*
v.3.72
v0.*
v0.0.75
v0.1.0
v0.2.0
v0.2.1
v0.2.4
v0.2.6
v0.2.7
v0.2.71
v0.2.72
v0.2.73
v0.2.74
v0.2.77
v0.3.0
v0.3.3
v0.3.6
v0.3.745
v0.4.24
v0.4.243
v0.5.0.post1
v0.6.3
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.7.4
v0.8.6
v0.8.7
v0.8.8
v0.8.9
v0.9.0
v0.9.1
v0.9.2
vr0.*
vr0.6.0
vr0.6.0rc1
vr0.6.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91942.json"