CVE-2026-57571

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 61% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.6Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, when the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path or traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents; the HTTP crawler path uses the response Content-Disposition filename and the browser crawler path uses the download's suggested filename. Because the written bytes are attacker-controlled, this can escalate to remote code execution. This issue is fixed in version 0.9.0.

CVSS v3
9.6
EG Score
9.6(medium)
EPSS
39.4%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 7, 2026

Advisory Details (1)

Auto-updated Jul 6, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Arbitrary file write (path traversal) in crawler downloads can lead to RCE · Advisory · unclecode/crawl4ai · GitHub

https://github.com/unclecode/crawl4ai/security/advisories/GHSA-2jq4-q6vv-4cp3

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 50× in last 7d / 50× 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.

  1. 2026-07-13 02:08 UTCEG score recompute
  2. 2026-07-12 22:18 UTCEG score recompute
  3. 2026-07-12 18:29 UTCEG score recompute
  4. 2026-07-12 14:39 UTCEG score recompute
  5. 2026-07-12 10:49 UTCEG score recompute
  6. 2026-07-12 07:00 UTCEG score recompute
  7. 2026-07-12 05:46 UTCEPSS rescore
  8. 2026-07-12 03:10 UTCEG score recompute
  9. 2026-07-11 23:20 UTCEG score recompute
  10. 2026-07-11 19:30 UTCEG score recompute
  11. 2026-07-11 15:40 UTCEG score recompute
  12. 2026-07-11 11:50 UTCEG score recompute
  13. 2026-07-11 08:27 UTCEPSS rescore
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  15. 2026-07-11 08:00 UTCEG score recompute
  16. 2026-07-11 04:10 UTCEG score recompute
  17. 2026-07-11 00:17 UTCEG score recompute
  18. 2026-07-10 20:21 UTCEG score recompute
  19. 2026-07-10 16:32 UTCEG score recompute
  20. 2026-07-10 12:42 UTCEG score recompute
  21. 2026-07-10 08:53 UTCEG score recompute
  22. 2026-07-10 05:03 UTCEG score recompute
  23. 2026-07-10 01:10 UTCEG score recompute
  24. 2026-07-09 21:20 UTCEG score recompute
  25. 2026-07-09 19:10 UTCEPSS rescore
Show 25 more
  1. 2026-07-09 19:10 UTCEPSS rescore
  2. 2026-07-09 17:30 UTCEG score recompute
  3. 2026-07-09 13:40 UTCEG score recompute
  4. 2026-07-09 09:50 UTCEG score recompute
  5. 2026-07-09 06:01 UTCEG score recompute
  6. 2026-07-09 02:11 UTCEG score recompute
  7. 2026-07-08 22:21 UTCEG score recompute
  8. 2026-07-08 18:32 UTCEG score recompute
  9. 2026-07-08 15:16 UTCEPSS rescore
  10. 2026-07-08 15:16 UTCEPSS rescore
  11. 2026-07-08 14:43 UTCEG score recompute
  12. 2026-07-08 10:52 UTCEG score recompute
  13. 2026-07-08 07:03 UTCEG score recompute
  14. 2026-07-08 03:12 UTCEG score recompute
  15. 2026-07-07 23:22 UTCEG score recompute
  16. 2026-07-07 19:33 UTCEG score recompute
  17. 2026-07-07 15:43 UTCEG score recompute
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-07 13:46 UTCEPSS rescore
  20. 2026-07-07 11:52 UTCEG score recompute
  21. 2026-07-07 08:02 UTCEG score recompute
  22. 2026-07-07 04:11 UTCEG score recompute
  23. 2026-07-07 00:20 UTCEG score recompute
  24. 2026-07-06 20:30 UTCEG score recompute
  25. 2026-07-06 20:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57571?
CVE-2026-57571 is a critical vulnerability published on July 6, 2026. Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, when the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path or traversal…
When was CVE-2026-57571 disclosed?
CVE-2026-57571 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57571 actively exploited?
CVE-2026-57571 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57571?
CVE-2026-57571 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-57571?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57571, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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