How severe is CVE-2026-57573?

CVE-2026-57573 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-57573 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-57573?

CVE-2026-57573 affects Kidocode Crawl4ai. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-57573?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-57573 published?

CVE-2026-57573 was published on 2026-07-06 and last updated on 2026-07-07.

CVE-2026-57573

CVE-2026-57573 is a high-severity vulnerability in Kidocode Crawl4ai with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Kidocode Crawl4ai
Published: 2026-07-06
Last modified: 2026-07-07

Description

Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server applied its SSRF destination check 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, allowing a remote unauthenticated client to call POST /crawl/stream or POST /crawl with crawler_config.stream=true with a URL pointing at an internal, private, or link-local address; the server fetched it and streamed the response body back. This issue is fixed in version 0.9.0.

Frequently asked questions

What is CVE-2026-57573?: Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server applied its SSRF destination check 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, allowing a remote unauthenticated client to call POST /crawl/stream or POST /crawl with crawler_config.stream=true with a URL pointing at an internal, private, or link-local address; the server fetched it and streamed the response body back. This issue is fixed in version 0.9.0.
How severe is CVE-2026-57573?: CVE-2026-57573 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-57573 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-57573?: CVE-2026-57573 affects Kidocode Crawl4ai. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-57573?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-57573 published?: CVE-2026-57573 was published on 2026-07-06 and last updated on 2026-07-07.

References

Affected products (1)

cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:*

More vulnerabilities in Kidocode Crawl4ai

CVE-2026-57572 — Critical (CVSS 10.0): Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server accepted…
CVE-2026-26216 — Critical (CVSS 10.0): Crawl4AI versions prior to 0.8.0 contain a remote code execution vulnerability in the Docker API deployment. The /crawl…
CVE-2026-53753 — Critical (CVSS 9.8): Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.7, the _safe_eval_expression() function in…
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CVE-2025-28197 — Critical (CVSS 9.1): Crawl4AI <=0.4.247 is vulnerable to SSRF in /crawl4ai/async_dispatcher.py.

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