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CVE-2020-26709

23
FAUCET Score

CVE-2020-26709 describes an XML External Entity (XXE) Injection vulnerability in py-xml v1.0, allowing attackers to execute arbitrary code through a specially crafted XML file. This high-severity vulnerability (CVSS 7.5) has a low attack complexity and requires no user interaction, potentially leading to a complete loss of availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the underlying CWE-611 indicates a known attack vector. The vulnerability is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:py-xml_project:py-xml:1.0:*:*:*:*:python:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 28th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

pipGHSA-j6v2-mwxm-f952high

py-xml XML External Entity Injection vulnerability

Jun 29, 2023

References

github.com / PinaeOS/py-xml/issues/2
Issue TrackingThird Party Advisory