Atlassian Connect Spring Boot up to 2.1.2/2.1.4 Server-to-Server JWT improper authentication
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.8 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical has been found in Atlassian Connect Spring Boot up to 2.1.2/2.1.4. This issue affects some unknown processing of the component Server-to-Server JWT. The manipulation leads to improper authentication. This vulnerability is documented as CVE-2021-26077. There is not any exploit available. It is recommended to upgrade the affected component.
Details
A vulnerability was found in Atlassian Connect Spring Boot up to 2.1.2/2.1.4. It has been rated as critical. This issue affects some unknown processing of the component Server-to-Server JWT. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.
The weakness was released 05/10/2021. The advisory is shared at community.developer.atlassian.com. The identification of this vulnerability is CVE-2021-26077. Neither technical details nor an exploit are publicly available.
Upgrading to version 2.1.3 or 2.1.5 eliminates this vulnerability.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Vendor
Name
Version
License
Website
- Vendor: https://www.atlassian.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.9VulDB Meta Temp Score: 6.8
VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
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 |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Improper authenticationCWE: CWE-287
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: Connect Spring Boot 2.1.3/2.1.5
Timeline
01/25/2021 🔍05/10/2021 🔍
05/10/2021 🔍
02/13/2025 🔍
Sources
Vendor: atlassian.comAdvisory: community.developer.atlassian.com
Status: Confirmed
CVE: CVE-2021-26077 (🔍)
GCVE (CVE): GCVE-0-2021-26077
GCVE (VulDB): GCVE-100-174761
Entry
Created: 05/10/2021 07:39Updated: 02/13/2025 00:45
Changes: 05/10/2021 07:39 (38), 05/13/2021 02:50 (5), 02/13/2025 00:45 (33)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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