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PatchSiren cyber security CVE debrief

CVE-2026-6106 1Panel-dev CVE debrief

A vulnerability was detected in 1Panel-dev MaxKB up to 2.2.1. This vulnerability affects the function StaticHeadersMiddleware of the file apps/common/middleware/static_headers_middleware.py of the component Public Chat Interface. The manipulation of the argument Name results in cross site scripting. The attack may be launched remotely. The exploit is now public and may be used. Upgrading to version 2.8.0 is able to resolve this issue. The patch is identified as 026a2d623e2aa5efa67c4834651e79d5d7cab1da.

Vendor
1Panel-dev
Product
MaxKB
CVSS
LOW 2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-11
Original CVE updated
2026-10-26
Advisory published
2026-04-11
Advisory updated
2026-10-26

Who should care

Defenders responsible for 1Panel-dev MaxKB deployments should assess exposure and prioritize upgrading to version 2.8.0 or applying the patch 026a2d623e2aa5efa67c4834651e79d5d7cab1da.

Why it matters

CVE-2026-6106 is a cross-site scripting vulnerability in 1Panel-dev MaxKB up to 2.2.1 that can be mitigated by upgrading to version 2.8.0 or applying patch 026a2d623e2aa5efa67c4834651e79d5d7cab1da. Defenders should assess exposure and prioritize remediation due to the public availability of the exploit.

  • Defenders must verify if 1Panel-dev MaxKB up to 2.2.1 is used in their environment and prioritize upgrading to version 2.8.0 or applying the patch.
  • Cross-site scripting could allow attackers to inject malicious scripts, potentially leading to unauthorized actions or data manipulation.
  • The exploit is public and may be used, increasing the urgency for defenders to take action.

Technical summary

The vulnerability affects the function StaticHeadersMiddleware of the file apps/common/middleware/static_headers_middleware.py of the component Public Chat Interface in 1Panel-dev MaxKB up to 2.2.1. The manipulation of the argument Name results in cross site scripting. This vulnerability can be mitigated by upgrading to version 2.8.0 or applying patch 026a2d623e2aa5efa67c4834651e79d5d7cab1da. Defenders should assess exposure and prioritize remediation due to the public availability of the exploit. The attack may be launched remotely and the exploit is now public and may be used.

Defensive priority

Defenders should prioritize upgrading to version 2.8.0 or applying the patch 026a2d623e2aa5efa67c4834651e79d5d7cab1da to mitigate the cross-site scripting vulnerability in 1Panel-dev MaxKB up to 2.2.1.

Recommended defensive actions

  • Upgrade to version 2.8.0
  • Apply patch 026a2d623e2aa5efa67c4834651e79d5d7cab1da
  • Review and update affected components
  • Verify if 1Panel-dev MaxKB up to 2.2.1 is used in the environment
  • Assess exposure and prioritize remediation due to public exploit availability
  • Monitor for suspicious activity related to cross-site scripting
  • Inventory assets using 1Panel-dev MaxKB for remediation prioritization

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, affected versions, and fixed versions. However, the corpus does not establish versions, exploitation, impact, or remediation beyond upgrading to version 2.8.0 or applying the patch.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-6106 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-6106

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-6106 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-6106

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.