How severe is CVE-2026-5602?

CVE-2026-5602 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-5602 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5602?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-5602 have an EU (EUVD) identifier?

Yes. CVE-2026-5602 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19134.

When was CVE-2026-5602 published?

CVE-2026-5602 was published on 2026-04-05 and last updated on 2026-06-17.

CVE-2026-5602

CVE-2026-5602 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
CVSS v4: 1.9
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19134
Weakness: CWE-77
Published: 2026-04-05
Last modified: 2026-06-17

Description

A vulnerability was determined in Nor2-io heim-mcp up to 0.1.3. Impacted is the function registerTools of the file src/tools.ts of the component new_heim_application/deploy_heim_application/deploy_heim_application_to_cloud. This manipulation causes os command injection. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Patch name: c321d8af25f77668781e6ccb43a1336f9185df37. It is suggested to install a patch to address this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Frequently asked questions

What is CVE-2026-5602?: A vulnerability was determined in Nor2-io heim-mcp up to 0.1.3. Impacted is the function registerTools of the file src/tools.ts of the component new_heim_application/deploy_heim_application/deploy_heim_application_to_cloud. This manipulation causes os command injection. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Patch name: c321d8af25f77668781e6ccb43a1336f9185df37. It is suggested to install a patch to address this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
How severe is CVE-2026-5602?: CVE-2026-5602 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-5602 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5602?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5602 have an EU (EUVD) identifier?: Yes. CVE-2026-5602 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19134.
When was CVE-2026-5602 published?: CVE-2026-5602 was published on 2026-04-05 and last updated on 2026-06-17.

References

Other CWE-77 (Command Injection) vulnerabilities

CVE-2026-23652 — Critical (CVSS 10.0): Improper neutralization of special elements used in a command ('command injection') in Microsoft Power Pages allows an…
CVE-2025-59818 — Critical (CVSS 10.0): This vulnerability allows authenticated attackers to execute arbitrary commands on the underlying system using the file…
CVE-2025-64093 — Critical (CVSS 10.0): Remote Code Execution vulnerability that allows unauthenticated attackers to inject arbitrary commands into the…
CVE-2025-64090 — Critical (CVSS 10.0): This vulnerability allows authenticated attackers to execute commands via the hostname of the device.
CVE-2025-61492 — Critical (CVSS 10.0): A command injection vulnerability in the execute_command function of terminal-controller-mcp 0.1.7 allows attackers to…
CVE-2025-10035 — Critical (CVSS 10.0): A deserialization vulnerability in the License Servlet of Fortra's GoAnywhere MFT allows an actor with a validly forged…

Browse all CWE-77 (Command Injection) vulnerabilities →