Apache ActiveMQ Artemis 2.15.0 OpenWire Protocol access control

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.5 | $5k-$25k | 1.70 |
Summary
A vulnerability was found in Apache ActiveMQ Artemis 2.15.0 and classified as critical. Impacted is an unknown function of the component OpenWire Protocol Handler. Executing a manipulation can lead to access control. The identification of this vulnerability is CVE-2021-26118. There is no exploit available.
Details
A vulnerability has been found in Apache ActiveMQ Artemis 2.15.0 (Application Server Software) and classified as critical. This vulnerability affects an unknown code of the component OpenWire Protocol Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was shared 01/28/2021. The advisory is shared for download at lists.apache.org. This vulnerability was named CVE-2021-26118. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/15/2026). The MITRE ATT&CK project declares the attack technique as T1068.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apache.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.5
VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Access controlCWE: CWE-284 / CWE-266
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 |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
01/25/2021 🔍01/28/2021 🔍
01/28/2021 🔍
06/15/2026 🔍
Sources
Vendor: apache.orgAdvisory: lists.apache.org
Status: Not defined
CVE: CVE-2021-26118 (🔍)
GCVE (CVE): GCVE-0-2021-26118
GCVE (VulDB): GCVE-100-168844
Entry
Created: 01/28/2021 08:31Updated: 06/15/2026 15:19
Changes: 01/28/2021 08:31 (37), 02/21/2021 07:01 (2), 02/21/2021 07:05 (18), 06/15/2026 15:19 (15)
Complete: 🔍
Cache ID: 216::103
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