CVE-2020-29128

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 2.3%, top 19% 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.8Exploit: None knownExposed: 0

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

petl before 1.68, in some configurations, allows resolution of entities in an XML document.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity98% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
83%
KEV
Not listed

Published

November 26, 2020

Last Modified

November 21, 2024

Advisory Details (6)

Auto-updated Sep 12, 2026
Patch available. Sources: github_pr, github.
generic

Security issue · Issue #526 · petl-developers/petl · GitHub

https://github.com/petl-developers/petl/issues/526
generic

Comparing v1.6.7...v1.6.8 · petl-developers/petl · GitHub

https://github.com/petl-developers/petl/compare/v1.6.7...v1.6.8
generic

advisories/cve-2020-29128.md at master · nvn1729/advisories · GitHub

https://github.com/nvn1729/advisories/blob/master/cve-2020-29128.md
github Patch Available

CVE-2020-29128: XXE in petl < 1.68 · Advisory · petl-developers/petl · GitHub

https://github.com/petl-developers/petl/security/advisories/GHSA-f5gc-p5m3-v347
github_pr Patch Available

Added new parameter parser in fromxml() for custom parsers

Patch available: petl-developers/petl v1.6.8 (PR #527 merged 2020-10-05)

https://github.com/petl-developers/petl/pull/527/commits/1b0a09f08c3cdfe2e69647bd02f97c1367a5b5f8
github_pr Patch Available

Added new parameter parser in fromxml() for custom parsers

Patch available: petl-developers/petl v1.6.8 (PR #527 merged 2020-10-05)

https://github.com/petl-developers/petl/pull/527

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
petl0.2 ... 1.6.7 (73 versions)1.6.8—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 23× 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 142 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2020-29128?
CVE-2020-29128 is a critical vulnerability published on November 26, 2020. petl before 1.68, in some configurations, allows resolution of entities in an XML document.
When was CVE-2020-29128 disclosed?
CVE-2020-29128 was first published in the National Vulnerability Database on November 26, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-29128 actively exploited?
CVE-2020-29128 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 17.3% of all scored CVEs.
What is the CVSS score of CVE-2020-29128?
CVE-2020-29128 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-29128?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-29128, 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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