CVE-2026-106151: In Progress® Kendo® UI for jQuery versions starting with 2012.2.710 and prior to 2026.3.1015, the Validator de

Routine

MEDIUM 5.4UPGRADE

CVE-2026-106151 is a medium-severity flaw (CVSS 5.4) affecting kendo ui. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Progress® Kendo® UI for jQuery versions starting with 2012.2.710 and prior to 2026.3.1015, the Validator decodes validation messages from data-msg-* attributes and parses the resulting text as HTML. An attacker who can modify a validation message can cause HTML that was correctly escaped in the page attribute to become active markup, including event handlers, when the user triggers validation. Successful exploitation can execute JavaScript in

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-80
Published	2026-10-15
Last modified	2026-10-20

Publisher (CNA): Progress Software Corporation · Vendor: progress

Last updated 2026-10-20 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-15 15:17 UTCPublished CVE record published
2026-10-20 19:38 UTCUpdated Record last modified

progress kendo ui UPGRADE

Affected: >= 2012.2.710 and < 2026.3.1015

Fixed in: 2026.3.1015

Safe to downgrade to: a release before 2012.2.710

1. Check installed version

apt-cache policy kendo-ui || rpm -q kendo-ui || kendo-ui --version

2. UPGRADE to 2026.3.1015 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kendo-ui

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kendo-ui

Note

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

3. If no update is available yet, DOWNGRADE to a release before 2012.2.710 (Debian / Ubuntu)

apt-cache madison kendo-ui sudo apt install kendo-ui=<VERSION_BEFORE_2012.2.710> sudo apt-mark hold kendo-ui

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list kendo-ui sudo dnf downgrade kendo-ui-<VERSION_BEFORE_2012.2.710> sudo dnf versionlock add kendo-ui

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-2026-106151?

kendo ui: upgrade to 2026.3.1015. Exact commands for each OS are on this page.

Is CVE-2026-106151 being exploited?

CVE-2026-106151 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-2026-106151 affect?

CVE-2026-106151 affects kendo ui. Severity is medium (CVSS 5.4). In Progress® Kendo® UI for jQuery versions starting with 2012.2.710 and prior to 2026.3.1015, the Validator decodes validation messages from data-msg-* attributes and parses the resulting text as HTML. An attacker who can modify a validatio

How urgent is CVE-2026-106151?

Priority 21/100. No elevated risk signals yet.

Software pages

jQuery vulnerabilities

Related CVEs

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References

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