CVE-2026-35000: ChangeDetection.io versions prior to 0.54.7 contain a protection bypass vulnerability in the SafeXPath3Parser

Q: How do I fix CVE-2026-35000?

changedetection: upgrade to 0.54.7. Exact commands for each OS are on this page.

Q: Is CVE-2026-35000 being exploited?

CVE-2026-35000 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-2026-35000 affect?

CVE-2026-35000 affects changedetection. Severity is medium (CVSS 6.5). ChangeDetection.io versions prior to 0.54.7 contain a protection bypass vulnerability in the SafeXPath3Parser implementation that allows attackers to read arbitrary local files by using unblocked XPath 3.0/3.1 functions such as json-doc() a

Q: How urgent is CVE-2026-35000?

Priority 28/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-35000 is a medium-severity flaw (CVSS 6.5) affecting changedetection. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ChangeDetection.io versions prior to 0.54.7 contain a protection bypass vulnerability in the SafeXPath3Parser implementation that allows attackers to read arbitrary local files by using unblocked XPath 3.0/3.1 functions such as json-doc() and similar file-access primitives. Attackers can exploit the incomplete blocklist of dangerous XPath functions to access sensitive data from the local filesystem.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-184
Published	2026-04-01
Last modified	2026-10-25

Publisher (CNA): VulnCheck · Vendor: webtechnologies

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-01 19:16 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

webtechnologies changedetection UPGRADE

Affected: < 0.54.7

Fixed in: 0.54.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy changedetection || rpm -q changedetection || changedetection --version

2. UPGRADE to 0.54.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade changedetection

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade changedetection

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-35000?

changedetection: upgrade to 0.54.7. Exact commands for each OS are on this page.

Is CVE-2026-35000 being exploited?

CVE-2026-35000 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-2026-35000 affect?

CVE-2026-35000 affects changedetection. Severity is medium (CVSS 6.5). ChangeDetection.io versions prior to 0.54.7 contain a protection bypass vulnerability in the SafeXPath3Parser implementation that allows attackers to read arbitrary local files by using unblocked XPath 3.0/3.1 functions such as json-doc() a

How urgent is CVE-2026-35000?

Priority 28/100. No elevated risk signals yet.

References

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