How severe is CVE-2020-29128?

CVE-2020-29128 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-29128 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-29128?

CVE-2020-29128 affects Petl Project Petl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-29128?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-29128 published?

CVE-2020-29128 was published on 2020-11-26 and last updated on 2026-06-17.

CVE-2020-29128

CVE-2020-29128 is a critical-severity vulnerability in Petl Project Petl with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-91.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-91
Affected product: Petl Project Petl
Published: 2020-11-26
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2020-29128?: petl before 1.68, in some configurations, allows resolution of entities in an XML document.
How severe is CVE-2020-29128?: CVE-2020-29128 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-29128 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-29128?: CVE-2020-29128 affects Petl Project Petl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-29128?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-29128 published?: CVE-2020-29128 was published on 2020-11-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:petl_project:petl:*:*:*:*:*:*:*:*

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