Crawl4AI before 0.8.7 contains an authentication bypass vulnerability due to a hardcoded default JWT signing key in the Docker API server. Attackers who know the default key can forge valid authentication tokens for any user, bypassing authentication and gaining full access to protected functionality.
CVE-2026-56265
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-21. a secondary CVSS source baseline 9.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(high)
- EPSS
- 32.6%
- KEV
- Not listed
Published
June 21, 2026
Last Modified
June 26, 2026
Advisory Details (3)
Auto-updated Jun 29, 2026Multiple Docker API Vulnerabilities - File Write, SSRF, Auth Bypass, XSS, JS Execution · Advisory · unclecode/crawl4ai · GitHub
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfgCrawl4AI - Authentication Bypass via Hardcoded JWT Signing Key | Advisories | VulnCheck
https://www.vulncheck.com/advisories/crawl4ai-authentication-bypass-via-hardcoded-jwt-signing-keyGitHub - unclecode/crawl4ai: 🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper. Don't be shy, join here: https://discord.gg/jP8KfhDhyN · GitHub
https://github.com/unclecode/crawl4aiVendor Advisories for CVE-2026-56265(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 98× in last 7d / 215× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 215 total refreshes for this CVE.
- 2026-07-07 04:05 UTCEG score recompute
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Related CVEs(same CWE)
Same CWE
10 shownCWE-798
Frequently asked(5)
What is CVE-2026-56265?
When was CVE-2026-56265 disclosed?
Is CVE-2026-56265 actively exploited?
What is the CVSS score of CVE-2026-56265?
How do I remediate CVE-2026-56265?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-56265
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