CVE-2026-56265

Name: CVE-2026-56265
Creator: NVD / NIST
Published: 2026-06-21T14:16:24.98+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.43%

Last modified Jun 26, 2026

CVE-2026-56265 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.43%

34.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Kidocode	Crawl4ai	< 0.8.7

References

https://github.com/unclecode/crawl4aiProduct
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfgMitigation, Vendor Advisory
https://www.vulncheck.com/advisories/crawl4ai-authentication-bypass-via-hardcoded-jwt-signing-keyThird Party Advisory
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfgMitigation, Vendor Advisory

Timeline

Published: Jun 21, 2026
Last Modified: Jun 26, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-56265?

How severe is CVE-2026-56265?

CVE-2026-56265 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2026-56265?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-56265?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST