CVE-2026-91842

MEDIUMPre-NVD 4.14.1—
EchelonGraph scoreHIGH confidence

Score 4.1 from GitHub Security Advisory (severity: LOW) published 2026-09-15. a secondary CVSS source baseline 4.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
4.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.1Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
4.1
EG Score
4.1(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity41% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

September 15, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

GitHub - OpenBankProject/OBP-API: An open source RESTful API platform for banks that supports Open Banking, XS2A, PSD2 and Open Finance through access to accounts, transactions, counterparties, payments, entitlements and metadata - plus a host of internal banking and management APIs. · GitHub

https://github.com/OpenBankProject/OBP-API/
generic🟡 PoC Available

Unsafe Kryo deserialization of Redis cache values (CWE-502) — RCE if the cache Redis is attacker-writable · Issue #2888 · OpenBankProject/OBP-API · GitHub

https://github.com/OpenBankProject/OBP-API/issues/2888

Vendor Advisories for CVE-2026-91842(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 23× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 10:10 UTCEG score recompute
  2. 2026-09-20 10:10 UTCGHSA enrichment
  3. 2026-09-19 12:13 UTCEG score recompute
  4. 2026-09-19 12:13 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 14:15 UTCEG score recompute
  7. 2026-09-18 14:15 UTCGHSA enrichment
  8. 2026-09-17 19:32 UTCEPSS rescore
  9. 2026-09-17 16:03 UTCGHSA enrichment
  10. 2026-09-16 18:05 UTCGHSA enrichment
  11. 2026-09-16 14:31 UTCEG score recompute
  12. 2026-09-16 14:31 UTCGHSA enrichment
  13. 2026-09-16 14:09 UTCEPSS rescore
  14. 2026-09-15 16:34 UTCEG score recompute
  15. 2026-09-15 16:34 UTCGHSA enrichment
  16. 2026-09-15 16:31 UTCNVD updateCVSS v4 → 1.2
  17. 2026-09-15 15:59 UTCEG score recompute
  18. 2026-09-15 15:59 UTCGHSA enrichment
  19. 2026-09-15 15:57 UTCMITRE cvelistV5CVSS v4 → 2.1
  20. 2026-09-15 15:31 UTCEG score recompute
  21. 2026-09-15 15:31 UTCNVD updateCVSS v4 → 1.2
  22. 2026-09-15 15:03 UTCEG score recompute
  23. 2026-09-15 15:02 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-91842?
CVE-2026-91842 is a medium vulnerability published on September 15, 2026. 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…
When was CVE-2026-91842 disclosed?
CVE-2026-91842 was first published in the National Vulnerability Database on September 15, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-91842 actively exploited?
CVE-2026-91842 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.5% of all scored CVEs.
What is the CVSS score of CVE-2026-91842?
CVE-2026-91842 has a CVSS v3 base score of 4.1 (NVD).
How do I remediate CVE-2026-91842?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-91842, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-91842

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