CVE-2026-16075 AstrBotDevs CVE debrief

Who should care

Users of AstrBotDevs AstrBot up to version 4.25.5 should be aware of this vulnerability and take necessary precautions. The affected operators are those using the AstrBot product, and the platform impact is related to authorization bypass. The vulnerability management and security teams should review the CVE record and NVD entry to understand the affected scope and vendor guidance.

Technical summary

The vulnerability affects the OpenApiRoute.get_chat_sessions function in astrbot/dashboard/routes/open_api.py. The manipulation of the Username argument can lead to authorization bypass. The attack can be initiated remotely, and the affected product is AstrBotDevs AstrBot up to version 4.25.5. The defensive impact is low due to the low CVSS score, and defenders should focus on verifying the affected scope and applying vendor patches.

Defensive priority

Low priority due to low CVSS score of 2.1, but defenders should still verify the affected scope and apply vendor patches.

Recommended defensive actions

• Verify and apply vendor patches or updates
• Restrict access to the affected endpoint
• Monitor for suspicious activity
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-18T05:16:52.490Z and has not been modified since then. The NVD entry is currently in the 'Received' status. The evidence is limited, and defenders should verify the affected scope and vendor guidance. The vulnerability affects AstrBotDevs AstrBot up to 4.25.5, and the attack can be initiated remotely.

Sources and 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.