CVE-2026-2131: A vulnerability was identified in XixianLiang HarmonyOS-mcp-server 0.1.0

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MEDIUM 6.3DOWNGRADE

CVE-2026-2131 is a medium-severity flaw (CVSS 6.3) affecting harmonyos mcp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was identified in XixianLiang HarmonyOS-mcp-server 0.1.0. This vulnerability affects the function input_text. The manipulation of the argument text leads to os command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Why this priority

EPSS top 3%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	17.5% (top 3%)
CISA exploited list	No
Weakness	CWE-77, CWE-78
Published	2026-02-08
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: xixianliang

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

Am I affected?

Timeline

2026-02-08 03:15 UTCPublished CVE record published
2026-06-17 10:30 UTCUpdated Record last modified

xixianliang harmonyos mcp server DOWNGRADE

Affected: 0.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1.0

1. Check installed version

apt-cache policy harmonyos-mcp-server || rpm -q harmonyos-mcp-server || harmonyos-mcp-server --version

2. No fixed release: DOWNGRADE to a release before 0.1.0 (Debian / Ubuntu)

apt-cache madison harmonyos-mcp-server sudo apt install harmonyos-mcp-server=<VERSION_BEFORE_0.1.0> sudo apt-mark hold harmonyos-mcp-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list harmonyos-mcp-server sudo dnf downgrade harmonyos-mcp-server-<VERSION_BEFORE_0.1.0> sudo dnf versionlock add harmonyos-mcp-server

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-2026-2131?

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

Is CVE-2026-2131 being exploited?

CVE-2026-2131 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-2026-2131 affect?

CVE-2026-2131 affects harmonyos mcp server. Severity is medium (CVSS 6.3). A vulnerability was identified in XixianLiang HarmonyOS-mcp-server 0.1.0. This vulnerability affects the function input_text. The manipulation of the argument text leads to os command injection. Remote exploitation of the attack is possible

How urgent is CVE-2026-2131?

Priority 51/100. EPSS top 3%: very likely to be exploited; Public exploit reference

References

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