| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.3 | $0-$5k | 0.00 |
Summary
A vulnerability was found in halfgaar FlashMQ up to 1.26.1. It has been classified as problematic. This affects an unknown part. Performing a manipulation results in uncaught exception. This vulnerability was named CVE-2026-46411. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.
Details
A vulnerability classified as problematic has been found in halfgaar FlashMQ up to 1.26.1. This affects an unknown code block. The manipulation with an unknown input leads to a uncaught exception vulnerability. CWE is classifying the issue as CWE-248. An exception is thrown from a function, but it is not caught. This is going to have an impact on availability. The summary by CVE is:
FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.26.2, authorized clients have the ability to exceed the permitted over-commit of their write buffer and triggering an internal safe-guard exception. This exception was in a path that was not catchable, and therefore causes a server abort. This issue has been patched in version 1.26.2.
The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-46411 since 05/13/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available.
Upgrading to version 1.26.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 29e08f7b97b6e3f96db923c2b6a260c47b49c195 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Vendor
Name
Version
License
Website
- Product: https://github.com/halfgaar/FlashMQ/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.4VulDB Meta Temp Score: 5.3
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 6.5
CNA Vector (GitHub_M): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Uncaught exceptionCWE: CWE-248
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: FlashMQ 1.26.2
Patch: 29e08f7b97b6e3f96db923c2b6a260c47b49c195
Timeline
05/13/2026 CVE reserved06/10/2026 Advisory disclosed
06/10/2026 VulDB entry created
06/10/2026 VulDB entry last update
Sources
Product: github.comAdvisory: GHSA-g35r-265r-rxrh
Status: Confirmed
CVE: CVE-2026-46411 (🔒)
GCVE (CVE): GCVE-0-2026-46411
GCVE (VulDB): GCVE-100-370053
Entry
Created: 06/10/2026 06:44Changes: 06/10/2026 06:44 (66)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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