How severe is CVE-2026-5556?

CVE-2026-5556 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-5556 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5556?

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

Does CVE-2026-5556 have an EU (EUVD) identifier?

Yes. CVE-2026-5556 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19061.

When was CVE-2026-5556 published?

CVE-2026-5556 was published on 2026-04-05 and last updated on 2026-06-17.

CVE-2026-5556

CVE-2026-5556 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19061
Weakness: CWE-74
Published: 2026-04-05
Last modified: 2026-06-17

Description

A security vulnerability has been detected in badlogic pi-mono up to 0.58.4. This vulnerability affects the function discoverAndLoadExtensions of the file packages/coding-agent/src/core/extensions/loader.ts. The manipulation leads to code injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-5556?: A security vulnerability has been detected in badlogic pi-mono up to 0.58.4. This vulnerability affects the function discoverAndLoadExtensions of the file packages/coding-agent/src/core/extensions/loader.ts. The manipulation leads to code injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-5556?: CVE-2026-5556 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-5556 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5556?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5556 have an EU (EUVD) identifier?: Yes. CVE-2026-5556 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19061.
When was CVE-2026-5556 published?: CVE-2026-5556 was published on 2026-04-05 and last updated on 2026-06-17.

References

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