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PatchSiren cyber security CVE debrief

CVE-2026-64623 Jovancoding CVE debrief

CVE-2026-64623 is an improper cryptographic signature verification vulnerability in Network-AI before 5.13.4. The APSAdapter local verifier accepts any non-empty string as valid, allowing unauthenticated attackers to submit forged APS delegation payloads and obtain signed permission-grant tokens for sensitive resources like SHELL_EXEC. This vulnerability has a high CVSS score of 8.8, indicating a high severity. Users of Network-AI before version 5.13.4 should apply patches to prevent unauthorized access via forged APS delegation payloads.

Vendor
Jovancoding
Product
Network-AI
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-20
Original CVE updated
2026-07-20
Advisory published
2026-07-20
Advisory updated
2026-07-20

Who should care

Users of Network-AI before version 5.13.4, particularly those with administrative access, should apply patches to prevent unauthorized access via forged APS delegation payloads. Additionally, security teams and vulnerability management teams should review the affected scope and severity to prioritize patching and mitigation efforts.

Technical summary

The vulnerability exists in the APSAdapter of Network-AI before 5.13.4. The default local verifier improperly checks cryptographic signatures, accepting any non-empty string. This allows unauthenticated attackers to create forged APS delegation payloads with arbitrary scopes, bypassing signature verification. Successful exploitation can lead to obtaining signed permission-grant tokens for sensitive resources, including SHELL_EXEC. The high CVSS score of 8.8 indicates a high severity vulnerability.

Defensive priority

High priority due to the high CVSS score of 8.8 and the potential for unauthorized access to sensitive resources.

Recommended defensive actions

  • Apply the patch to Network-AI version 5.13.4 or later
  • Review and restrict access to sensitive resources
  • Monitor for suspicious APS delegation payloads
  • Implement additional authentication mechanisms
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-20T12:19:47.200Z and last modified on 2026-07-20T15:17:13.793Z. The NVD entry is currently Received. Evidence is limited to the provided source corpus and CVE record details. Defenders should verify the affected product scope and apply patches accordingly.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-64623 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-64623

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

  • CVE-2026-64623 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-64623

    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.