CVE-2020-26710Network attack vector

Service interruption via unrestricted XML entity expansion

Published Jun 29, 2023 · Updated Nov 27, 2024

XML external entity injection in easy-parse 0.1.1 allows attackers to interrupt service by supplying a crafted XML file. The xml_to_json function passes the input file to a default xml.sax parser while configuring only namespace handling, without imposing DTD or entity restrictions. Processing attacker-controlled XML is required; the documented consequence is resource exhaustion and service interruption, not code execution.

CVSS severity7.5
High
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML external entity injection in easy-parse 0.1.1 allows attackers to interrupt service by supplying a crafted XML file. The xml_to_json function passes the input file to a default xml.sax parser while configuring only namespace handling, without imposing DTD or entity restrictions. Processing attacker-controlled XML is required; the documented consequence is resource exhaustion and service interruption, not code execution.

The record

CVE
CVE-2020-26710
Published
Jun 29, 2023
Updated
Nov 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-611, CAPEC-221, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
CAPEC-221Data Serialization External Entities Blowup
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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