CVE-2026-53755

CVE-2026-53755 affects Crawl4AI up to version 0.8.9. The Docker API server fails to apply SSRF checks to proxy addresses, allowing an unauthenticated attacker to specify a proxy pointing at an internal IP while using a valid crawl URL. This can route Chromium egress through the proxy to reach int...

CVE-2026-53755: Server-Side Request Forgery (SSRF)

Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.9, the Docker API server applied its SSRF destination check to the crawl target URL only, not to the proxy address. An unauthenticated request could supply a proxy pointing at an internal IP and route the browser through...

CVE-2026-53754: Server-Side Request Forgery (SSRF)

Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.8, the Docker API server's SSRF protection validatewebhookurl / validateurldestination in deploy/docker/utils.py used an explicit IPv4/IPv6 CIDR blocklist that missed several address families. An attacker could reach...

Crawl4AI: authentication bypass vulnerability due to a hardcoded default JWT signing key in the Docker API server

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...

GHSA-8QRG-7J2F-RF2H Crawl4AI: authentication bypass vulnerability due to a hardcoded default JWT signing key in the Docker API server

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...

PYSEC-2026-239

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...

PYSEC-2026-239

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...

EUVD-2026-38170

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...

CVE-2026-56265 Crawl4AI - Authentication Bypass via Hardcoded JWT Signing Key

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...

CVE-2026-56265

CVE-2026-56265 affects Crawl4AI prior to 0.8.7 due to a hardcoded default JWT signing key in the Docker API server. The root cause is token forgery: an attacker who knows the default key can forge valid authentication tokens for any user, bypassing authentication and gaining full access to protec...

CVE-2026-56265 Crawl4AI - Authentication Bypass via Hardcoded JWT Signing Key

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...

CVE-2026-56265: Use of Hard-coded Credentials

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...

Crawl4AI: authentication bypass vulnerability due to a hardcoded default JWT signing key in the Docker API server

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...

GHSA-WM69-2PC3-RMMF Crawl4AI: Unauthenticated SSRF on the Docker server streaming crawl path (/crawl/stream)

Summary The Docker API server applied its SSRF destination check validateurldestination on the non-streaming /crawl path but not on the streaming path. handlestreamcrawlrequest passed seed URLs straight to the crawler with no destination validation. A remote, unauthenticated client could call POS...

GHSA-R253-R9JW-QG44 Crawl4AI: Unauthenticated RCE via Chromium launch-argument injection in browser_config.extra_args

Summary The Docker API server accepted a request-supplied browserconfig.extraargs, which flowed into Chromium's launch arguments. An attacker could inject Chromium switches that replace a child-process launch command --utility-cmd-prefix, --renderer-cmd-prefix, --gpu-launcher,...

Arbitrary Code Injection

Overview Crawl4AI is a 🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & scraper Affected versions of this package are vulnerable to Arbitrary Code Injection via the browserconfig.extraargs parameter in API requests. An attacker can execute arbitrary commands as the container's runtime user by...

PT-2026-53188

Summary The Docker API server applied its SSRF destination check validate url destination on the non-streaming /crawl path but not on the streaming path. handle stream crawl request passed seed URLs straight to the crawler with no destination validation. A remote, unauthenticated client could cal...

PT-2026-53187

Summary The Docker API server accepted a request-supplied browser config.extra args, which flowed into Chromium's launch arguments. An attacker could inject Chromium switches that replace a child-process launch command --utility-cmd-prefix, --renderer-cmd-prefix, --gpu-launcher,...

Crawl4AI: Unauthenticated SSRF on the Docker server streaming crawl path (/crawl/stream)

The Docker API server applied its SSRF destination check validateurldestination on the non-streaming /crawl path but not on the streaming path. handlestreamcrawlrequest passed seed URLs straight to the crawler with no destination validation. A remote, unauthenticated client could call POST...

Crawl4AI: Arbitrary file write (symlink/TOCTOU) plus log and webhook-header injection in Docker server

Summary Three backward-compatible hardening fixes in the Docker API server. The headline issue is an arbitrary file write via the screenshot/PDF outputpath. 1. Arbitrary file write via outputpath symlink / TOCTOU primary POST /screenshot and POST /pdf accept an outputpath constrained to...