CVE-2025-53864

MEDIUM
5.8
CVSS Score
Published: July 11, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 09:39 AM UTC
1 product affected across 1 vendorNimbus JOSE+JWT

Using Nimbus JOSE+JWT by Connect2id?

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Severity
MEDIUM5.8
Exploit prediction
EPSS 1.0%
SSVC
PoC

Description

Connect2id Nimbus JOSE + JWT before 10.0.2 allows a remote attacker to cause a denial of service via a deeply nested JSON object supplied in a JWT claim set, because of uncontrolled recursion. NOTE: this is independent of the Gson 2.11.0 issue because the Connect2id product could have checked the JSON object nesting depth, regardless of what limits (if any) were imposed by Gson.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 10.0.2
Affected range stops below 10.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.8MEDIUMmitre
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-674

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