CVE-2024-52804

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 39% 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, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
62%
KEV
Not listed

Published

November 22, 2024

Last Modified

November 3, 2025

References (4)

Vendor Advisories for CVE-2024-52804(11)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython3-tornado (6.4.1-2ubuntu0.1) @ oracular2026-05-23ubuntu
redhatpcs-0:0.11.4-7.el9_2.42025-03-24redhat
redhatpcs-0:0.10.15-4.el8_8.42025-03-24redhat
redhatpcs-0:0.10.12-6.el8_6.72025-03-17redhat
redhatpcs-0:0.10.18-2.el8_10.42025-03-17redhat
redhatpcs-0:0.10.8-1.el8_4.62025-03-17redhat
redhatpcs-0:0.11.7-2.el9_4.32025-03-10redhat
redhatpcs-0:0.11.8-1.el9_5.22025-03-10redhat
redhatpcs-0:0.11.1-10.el9_0.72025-03-10redhat
redhatpython-tornado-0:6.4.2-1.el9_42024-12-05redhat
redhatpython-tornado-0:6.4.2-1.el9_22024-12-05redhat
redhatpython-tornado-0:6.4.2-1.el9_52024-12-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
python-tornado6.1.0-16.1.0-1+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
python-tornado6.2.0-36.2.0-3+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
python-tornado—6.4.2-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
python-tornado—6.4.2-1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
tornado0.2 ... 6.4b1 (73 versions)6.4.2—

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 33× 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.

Showing the most recent 100 of 139 total refreshes for this CVE.

  1. 2026-08-25 13:47 UTCEPSS rescore
  2. 2026-08-24 14:15 UTCEPSS rescore
  3. 2026-08-23 00:18 UTCEPSS rescore
  4. 2026-08-21 23:47 UTCEPSS rescore
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  10. 2026-08-16 14:54 UTCEPSS rescore
  11. 2026-08-16 02:13 UTCEPSS rescore
  12. 2026-08-15 19:07 UTCOSV refresh
  13. 2026-08-15 01:29 UTCEPSS rescore
  14. 2026-08-13 21:59 UTCEPSS rescore
  15. 2026-08-12 13:49 UTCEPSS rescore
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  24. 2026-08-04 10:36 UTCEPSS rescore
  25. 2026-08-03 10:34 UTCEPSS rescore
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  1. 2026-08-02 02:25 UTCEPSS rescore
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  4. 2026-07-31 11:42 UTCOSV refresh
  5. 2026-07-30 16:26 UTCEPSS rescore
  6. 2026-07-30 01:29 UTCEPSS rescore
  7. 2026-07-28 15:35 UTCEPSS rescore
  8. 2026-07-27 14:11 UTCEPSS rescore
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  16. 2026-07-23 02:43 UTCEG score recompute
  17. 2026-07-22 14:07 UTCEPSS rescore
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  19. 2026-07-21 15:23 UTCEPSS rescore
  20. 2026-07-20 17:06 UTCEPSS rescore
  21. 2026-07-19 14:30 UTCEPSS rescore
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  23. 2026-07-19 02:28 UTCEPSS rescore
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  25. 2026-07-18 10:03 UTCEPSS rescore
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  27. 2026-07-16 17:02 UTCEPSS rescore
  28. 2026-07-15 16:57 UTCEPSS rescore
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  30. 2026-07-15 01:59 UTCEPSS rescore
  31. 2026-07-15 01:59 UTCEPSS rescore
  32. 2026-07-13 22:29 UTCEPSS rescore
  33. 2026-07-13 19:07 UTCOSV refresh
  34. 2026-07-13 06:12 UTCEPSS rescore
  35. 2026-07-12 05:45 UTCEPSS rescore
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  37. 2026-07-11 08:26 UTCEPSS rescore
  38. 2026-07-09 19:09 UTCEPSS rescore
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  40. 2026-07-08 15:14 UTCEPSS rescore
  41. 2026-07-07 13:45 UTCEPSS rescore
  42. 2026-07-06 16:26 UTCEPSS rescore
  43. 2026-07-06 02:22 UTCEPSS rescore
  44. 2026-07-05 02:29 UTCEPSS rescore
  45. 2026-07-04 06:30 UTCEPSS rescore
  46. 2026-07-01 15:05 UTCEPSS rescore
  47. 2026-06-30 23:21 UTCEPSS rescore
  48. 2026-06-29 14:05 UTCEPSS rescore
  49. 2026-06-28 14:07 UTCEPSS rescore
  50. 2026-06-28 04:55 UTCEPSS rescore
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  52. 2026-06-27 03:07 UTCEPSS rescore
  53. 2026-06-27 03:07 UTCEPSS rescore
  54. 2026-06-25 16:16 UTCOSV refresh
  55. 2026-06-25 13:49 UTCEPSS rescore
  56. 2026-06-24 14:04 UTCEPSS rescore
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  58. 2026-06-23 21:32 UTCEPSS rescore
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  60. 2026-06-22 14:25 UTCEPSS rescore
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  62. 2026-06-21 14:56 UTCEPSS rescore
  63. 2026-06-21 01:59 UTCEPSS rescore
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  65. 2026-06-19 19:25 UTCEPSS rescore
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  74. 2026-06-13 22:59 UTCEPSS rescore
  75. 2026-06-13 22:59 UTCEPSS rescore

Frequently asked(5)

What is CVE-2024-52804?
CVE-2024-52804 is a high vulnerability published on November 22, 2024. Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the…
When was CVE-2024-52804 disclosed?
CVE-2024-52804 was first published in the National Vulnerability Database on November 22, 2024, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-52804 actively exploited?
CVE-2024-52804 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 38.3% of all scored CVEs.
What is the CVSS score of CVE-2024-52804?
CVE-2024-52804 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2024-52804?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-52804, 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.

Dependency Blast Radius

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