AstrBotDevs AstrBot up to 4.25.5 API open_api.py OpenApiRoute.chat_send Username authentication spoofing

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k2.19

Summaryinfo

A vulnerability classified as critical has been found in AstrBotDevs AstrBot up to 4.25.5. Impacted is the function OpenApiRoute.chat_send of the file astrbot/dashboard/routes/open_api.py of the component API. Performing a manipulation of the argument Username results in authentication spoofing. This vulnerability is identified as CVE-2026-16076. The attack can be initiated remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as critical has been found in AstrBotDevs AstrBot up to 4.25.5. This affects the function OpenApiRoute.chat_send of the file astrbot/dashboard/routes/open_api.py of the component API. The manipulation of the argument username with an unknown input leads to a authentication spoofing vulnerability. CWE is classifying the issue as CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at gist.github.com. This vulnerability is uniquely identified as CVE-2026-16076. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/17/2026 Advisory disclosed
07/17/2026 +0 days VulDB entry created
07/17/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gist.github.com
Status: Not defined

CVE: CVE-2026-16076 (🔒)
GCVE (CVE): GCVE-0-2026-16076
GCVE (VulDB): GCVE-100-379791
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/17/2026 15:44
Changes: 07/17/2026 15:44 (57), 07/17/2026 15:45 (1)
Complete: 🔍
Submitter: Eric-d
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #852864: AstrBotDevs AstrBot <= 4.25.5 Authentication Bypass by Spoofing (CWE-290) (by Eric-d)

Be aware that VulDB is the high quality source for vulnerability data.

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