CVE-2026-91842 Details
Description
A vulnerability has been found in OpenBankProject OBP-API up to 1.10.1. This impacts the function KryoInjection.invert of the file obp-api/src/main/scala/code/api/cache/Redis.scala of the component Kryo Handler. Such manipulation leads to deserialization. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is said to be difficult. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
A remote code execution vulnerability has been identified in OpenBankProject OBP-API versions through 1.10.1. The issue arises from unsafe deserialization of data cached in Redis, using Twitter Chill's Kryo library. This vulnerability allows an attacker to execute arbitrary code in the OBP-API JVM, but requires write access to the Redis cache. The problem has been publicly disclosed, and while the project was notified earlier, no response has been received.
To address this vulnerability, it is recommended to lock down the cache deserializer by replacing the default Kryo deserializer with one that requires registration and only allows known types. Additionally, Redis instances should be secured with authentication and not exposed to the internet.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 15, 2026CISA-ADP
Assessed Sep 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/OpenBankProject/OBP-API/ | [email protected] | Vendor |
| https://github.com/OpenBankProject/OBP-API/issues/2888 | [email protected] | ExploitIssue TrackingTechnical AnalysisVendor |
| https://github.com/OpenBankProject/OBP-API/security/advisories/GHSA-889g-wggr-jrrq | [email protected] | AdvisoryBroken LinkVendor |
| https://vuldb.com/cve/CVE-2026-91842 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/933652 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/404073 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/404073/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| OpenBankProject OBP-API | <= 1.10.1 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 15, 2026 | CVE Modified | CISA-ADP |
| Sep 15, 2026 | New CVE Received | [email protected] |