CVE-2026-91940

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Source
https://cve.org/CVERecord?id=CVE-2026-91940
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91940.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91940
Aliases
  • GHSA-xpp7-j28w-2gvx
Published
2026-09-15T15:18:01Z
Modified
2026-09-18T03:30:49Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
crawl4ai before 0.9.3 Arbitrary File Write via PDFContentScrapingStrategy
Details

crawl4ai before 0.9.3 contains an arbitrary file write vulnerability in PDFContentScrapingStrategy where the _filter_untrusted_fields function fails to validate untrusted configuration fields. Attackers can submit crafted config bodies with malicious image_save_dir paths to write attacker-controlled bytes into any directory accessible to the service account.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91940.json"
}
References

Affected packages

Git / github.com/unclecode/crawl4ai

Affected ranges

Type
GIT
Repo
https://github.com/unclecode/crawl4ai
Events
Introduced
c66f3276fd355031c8632500911fe7041ad6fc14
Fixed
4bcd5fa8a56000ce103dd499e8ecdff2439f3e9c
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.9.0"
        },
        {
            "fixed": "0.9.3"
        },
        {
            "introduced": "crawl4ai"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

docker-rebuild-v0.*
docker-rebuild-v0.9.0
docker-rebuild-v0.9.1
docker-rebuild-v0.9.2
v0.*
v0.9.0
v0.9.1
v0.9.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91940.json"