CVE-2026-57571

CRITICALPre-NVD 9.69.6
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 9.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.8% (56th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
9.6EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 9.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
9.6CRITICALmedium confidence
EG Risk
44
EG Risk 44/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity96% × 45%
The EG Score, 9.6 of 10.
Exploitation0.8% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.8%
EPSS %ILE
56th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 6, 2026

Last Modified

July 7, 2026

Advisory Details (1)

Auto-updated Oct 7, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

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

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
crawl4ai0.3.0 ... 0.8.9 (67 versions)
  • every version up to 0.9.0: fixed in 0.9.0
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 161 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 61 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-17 10:27 UTCEG score recompute
  2. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  3. 2026-10-16 12:18 UTCEG score recompute
  4. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  5. 2026-10-15 13:54 UTCEG score recompute
  6. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  7. 2026-10-14 08:46 UTCEG score recompute
  8. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  9. 2026-10-13 04:23 UTCEG score recompute
  10. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  11. 2026-10-12 15:54 UTCEG score recompute
  12. 2026-10-11 19:37 UTCEG score recompute
  13. 2026-10-11 16:52 UTCEG score recompute
  14. 2026-10-11 14:15 UTCEG score recompute
  15. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  16. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  17. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  18. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  23. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  24. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.8% · 55th percentile
Show 75 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  2. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  3. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  4. 2026-09-28 13:42 UTCEG score recompute
  5. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  6. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  7. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  8. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  9. 2026-09-23 06:22 UTCEG score recompute
  10. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  11. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  12. 2026-09-18 05:59 UTCEG score recompute
  13. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  14. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  15. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  16. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  17. 2026-09-13 23:56 UTCEG score recompute
  18. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  19. 2026-09-13 08:43 UTCEG score recompute
  20. 2026-09-12 03:51 UTCEG score recompute
  21. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  22. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  23. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  24. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  25. 2026-09-06 14:10 UTCEG score recompute
  26. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  27. 2026-09-05 23:04 UTCEG score recompute
  28. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  29. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  30. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  31. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  32. 2026-08-30 20:43 UTCEG score recompute
  33. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  34. 2026-08-30 07:59 UTCEG score recompute
  35. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  36. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  37. 2026-08-27 21:58 UTCEG score recompute
  38. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  39. 2026-08-27 02:07 UTCEG score recompute
  40. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  41. 2026-08-25 15:59 UTCEG score recompute
  42. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  43. 2026-08-24 20:44 UTCEG score recompute
  44. 2026-08-24 10:01 UTCEG score recompute
  45. 2026-08-23 01:59 UTCEG score recompute
  46. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  47. 2026-08-22 04:47 UTCEG score recompute
  48. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  49. 2026-08-20 23:26 UTCEG score recompute
  50. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  51. 2026-08-20 02:26 UTCEG score recompute
  52. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  53. 2026-08-18 20:49 UTCEG score recompute
  54. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  55. 2026-08-17 22:40 UTCEG score recompute
  56. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  57. 2026-08-16 18:18 UTCEG score recompute
  58. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  59. 2026-08-16 03:00 UTCEG score recompute
  60. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  61. 2026-08-15 02:21 UTCEG score recompute
  62. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  63. 2026-08-13 23:35 UTCEG score recompute
  64. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  65. 2026-08-12 16:56 UTCEG score recompute
  66. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  67. 2026-08-11 14:07 UTCEG score recompute
  68. 2026-08-11 02:38 UTCEG score recompute
  69. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  70. 2026-08-09 16:12 UTCEG score recompute
  71. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  72. 2026-08-08 17:15 UTCEG score recompute
  73. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  74. 2026-08-07 18:17 UTCEG score recompute
  75. 2026-08-06 14:56 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-57571?
CVE-2026-57571 is a critical-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-57571 published?
The CVE record for CVE-2026-57571 was published on July 6, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 7, 2026; the record at its source may have been updated since.
Is CVE-2026-57571 actively exploited?
CVE-2026-57571 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (56th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57571?
CVE-2026-57571 has a CVSS base score of 9.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-57571?
A fix for CVE-2026-57571 is available: update to the fixed version the vendor names in its advisory.

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