CVE-2025-6176

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 90% 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
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

Scrapy versions up to 2.13.2 are vulnerable to a denial of service (DoS) attack due to a flaw in its brotli decompression implementation. The protection mechanism against decompression bombs fails to mitigate the brotli variant, allowing remote servers to crash clients with less than 80GB of available memory. This occurs because brotli can achieve extremely high compression ratios for zero-filled data, leading to excessive memory consumption during decompression.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
40.0%
KEV
Not listed

Published

October 31, 2025

Last Modified

June 17, 2026

References (1)

Vendor Advisories for CVE-2025-6176(20)

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

Patch Availability(26)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatyggdrasil-worker-forwarder-0:0.0.3-4.el9sat2026-03-26redhat
redhatpython-brotli-0:1.2.0-0.1.el9pc2026-03-26redhat
redhatrhcos-415.92.202603101737-02026-03-19redhat
redhatrhcos-416.94.202603112010-02026-03-19redhat
redhatrhcos-412.86.202603041314-02026-03-12redhat
redhatrhcos-413.92.202602240113-02026-03-05redhat
redhatrhcos-4.19.9.6.202602252137-02026-03-04redhat
redhatrhcos-417.94.202602251654-02026-03-04redhat
redhatrhceph/rhceph-9-rhel9:17718160282026-02-26redhat
redhatrhcos-414.92.202602171627-02026-02-26redhat
redhatrhcos-418.94.202602172219-02026-02-25redhat
redhatdevspaces/udi-rhel9:17709138622026-02-17redhat
redhatrhceph/rhceph-7-rhel9:17706327242026-02-17redhat
redhatrhceph/rhceph-8-rhel9:17706309072026-02-16redhat
redhatbrotli-0:1.0.6-1.el8_2.12026-02-10redhat
redhatbrotli-0:1.0.6-4.el8_42026-02-10redhat
redhatbrotli-0:1.0.6-4.el8_62026-02-10redhat
redhatbrotli-0:1.0.6-4.el8_102026-02-10redhat
redhatbrotli-0:1.0.6-4.el8_82026-02-10redhat
redhatbrotli-0:1.0.9-7.el9_6.12026-02-09redhat
redhatbrotli-0:1.0.9-6.el9_4.12026-02-09redhat
redhatbrotli-0:1.0.9-6.el9_0.12026-02-09redhat
redhatbrotli-0:1.0.9-6.el9_2.12026-02-09redhat
redhatbrotli-0:1.0.9-9.el9_72026-02-05redhat
redhatbrotli-0:1.1.0-7.el10_12026-01-20redhat
redhatbrotli-0:1.1.0-6.el10_0.12026-01-05redhat

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

(2 across 1 ecosystem)
PyPI(2)
PackageVulnerable rangeFixed inDependents
brotli0.5.2 ... 1.1.0 (9 versions)1.2.0—
scrapy0.10.4.2364 ... 2.9.0 (104 versions)2.13.4—

Weakness Classification(1)

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

Additional Vendor Advisories

(6)

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 10× in last 7d / 45× 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 102 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-6176?
CVE-2025-6176 is a high vulnerability published on October 31, 2025. Scrapy versions up to 2.13.2 are vulnerable to a denial of service (DoS) attack due to a flaw in its brotli decompression implementation. The protection mechanism against decompression bombs fails to mitigate the brotli variant, allowing remote servers to crash clients with less than 80GB of…
When was CVE-2025-6176 disclosed?
CVE-2025-6176 was first published in the National Vulnerability Database on October 31, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-6176 actively exploited?
CVE-2025-6176 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-6176?
CVE-2025-6176 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2025-6176?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-6176, 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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