CVE-2020-26709

HIGHNVD 7.57.5—

7.5

py-xml v1.0 was discovered to contain an XML External Entity Injection (XXE) vulnerability which allows attackers to execute arbitrary code via a crafted XML file.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 21.2%
KEV: Not listed

Published

June 29, 2023

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/PinaeOS/py-xml/issues/2
af854a3a-2127-422b-91ae-364da2661108https://github.com/PinaeOS/py-xml/issues/2

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
pip	py-xml	—	ghsa

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

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
py-xml	1.0	—	—

Weakness Classification(1)

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

CWE-611Improper Restriction of XML External Entity Reference (XXE)

Data Freshness Timeline

(refreshed 10× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 22:12 UTCEG score recompute
2026-05-24 22:12 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2020-26709?

CVE-2020-26709 is a high vulnerability published on June 29, 2023. py-xml v1.0 was discovered to contain an XML External Entity Injection (XXE) vulnerability which allows attackers to execute arbitrary code via a crafted XML file.

When was CVE-2020-26709 disclosed?

CVE-2020-26709 was first published in the National Vulnerability Database on June 29, 2023, 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-2020-26709 actively exploited?

CVE-2020-26709 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-26709?

CVE-2020-26709 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2020-26709?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-26709, 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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CVE-2020-26709

📅 Published

🔄 Last Modified

🔗 References (2)