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VulnerabilityPublished

CVE-2026-55098: Basekick-Labs arc · Information Exposure

Affects Basekick-Labs arcSource CVE Database V5

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Mentioned vulnerabilities

Not known to be exploited · CVSS 6.5 Medium : upgrade to 26.06.2 when convenient.

Data as of 30 Oct 2026, 20:38 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.16.5
Patch
Available – fixed in 26.06.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Basekick-Labs arc to 26.06.2.

Affected software

ProductAffectedFixed in
Basekick-LabsarcAffected
  • <26.06.2
Fixed in
  • 26.06.2

AI-suggested

Upgrade to Arc version 26.06.2 or later, which contains the official fix for this vulnerability. The vendor advisory confirms that the issue is resolved in this version. No additional mitigation actions are required once the upgrade is applied.

Description

CVE-2026-55098 is a vulnerability in Basekick-Labs' Arc time-series database prior to version 26.06.2. It allows unauthorized actors to bypass cross-database authorization controls via certain unblocked DuckDB table-valued I/O functions. This enables reading and enumeration of other tenants' time-series data and schema information within the allowed storage root. The issue was fixed in version 26.06.2.

References

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