How severe is CVE-2026-1063?

CVE-2026-1063 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-1063 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-1063?

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

Does CVE-2026-1063 have an EU (EUVD) identifier?

Yes. CVE-2026-1063 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3127.

When was CVE-2026-1063 published?

CVE-2026-1063 was published on 2026-01-17 and last updated on 2026-06-17.

CVE-2026-1063

CVE-2026-1063 is a medium-severity vulnerability with a CVSS 3.x base score of 4.7. 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 4.7)
CVSS v2: 5.8
CVSS v4: 2.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3127
Weakness: CWE-74
Published: 2026-01-17
Last modified: 2026-06-17

Description

A vulnerability has been found in bastillion-io Bastillion up to 4.0.1. This vulnerability affects unknown code of the file src/main/java/io/bastillion/manage/control/AuthKeysKtrl.java of the component Public Key Management System. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public 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-2026-1063?: A vulnerability has been found in bastillion-io Bastillion up to 4.0.1. This vulnerability affects unknown code of the file src/main/java/io/bastillion/manage/control/AuthKeysKtrl.java of the component Public Key Management System. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-1063?: CVE-2026-1063 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-1063 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-1063?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1063 have an EU (EUVD) identifier?: Yes. CVE-2026-1063 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3127.
When was CVE-2026-1063 published?: CVE-2026-1063 was published on 2026-01-17 and last updated on 2026-06-17.

References

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