CVE-2020-26705: The parseXML function in Easy-XML 0.5.0 was discovered to have a XML External Entity (XXE) vulnerability which

Q: How do I fix CVE-2020-26705?

easyxml: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2020-26705 being exploited?

CVE-2020-26705 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-26705 affect?

CVE-2020-26705 affects easyxml. Severity is critical (CVSS 9.1). The parseXML function in Easy-XML 0.5.0 was discovered to have a XML External Entity (XXE) vulnerability which allows for an attacker to expose sensitive data or perform a denial of service (DOS) via a crafted external entity entered into t

Q: How urgent is CVE-2020-26705?

Priority 55/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.1REMOTEDOWNGRADE

CVE-2020-26705 is a critical-severity flaw (CVSS 9.1) affecting easyxml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The parseXML function in Easy-XML 0.5.0 was discovered to have a XML External Entity (XXE) vulnerability which allows for an attacker to expose sensitive data or perform a denial of service (DOS) via a crafted external entity entered into the XML content as input.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-611
Published	2021-10-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: easyxml project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-10-31 20:15 UTCPublished CVE record published
2026-06-17 03:08 UTCUpdated Record last modified

easyxml project easyxml DOWNGRADE

Affected: 0.5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.5.0

1. Check installed version

pip show easyxml

2. No fixed release: DOWNGRADE to a release before 0.5.0

pip index versions easyxml pip install "easyxml<0.5.0"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-26705?

easyxml: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-26705 being exploited?

CVE-2020-26705 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-26705 affect?

CVE-2020-26705 affects easyxml. Severity is critical (CVSS 9.1). The parseXML function in Easy-XML 0.5.0 was discovered to have a XML External Entity (XXE) vulnerability which allows for an attacker to expose sensitive data or perform a denial of service (DOS) via a crafted external entity entered into t

How urgent is CVE-2020-26705?

Priority 55/100. Critical severity; Remotely exploitable, no login, no user action

References

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