CVE-2025-63811

Published Nov 12, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
An issue was discovered in dvsekhvalnov jose2go 1.5.0 thru 1.7.0 allowing an attacker to cause a Denial-of-Service (DoS) via crafted JSON Web Encryption (JWE) token with an exceptionally high compression ratio.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-9mj6-hxhv-w67j jose2go is vulnerable to a JWT bomb attack through its decode function
History
Type Values Removed Values Added
CPEs cpe:2.3:a:dvsekhvalnov:jose2go:*:*:*:*:*:go:*:*
Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Dvsekhvalnov
Dvsekhvalnov jose2go
Vendors & Products Dvsekhvalnov
Dvsekhvalnov jose2go
Type Values Removed Values Added
Description An issue was discovered in dvsekhvalnov jose2go 1.5.0 thru 1.7.0 allowing an attacker to cause a Denial-of-Service (DoS) via crafted JSON Web Encryption (JWE) token with an exceptionally high compression ratio.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 13, 2025, 4:01 PM
Reserved
Oct 27, 2025, 12:00 AM
Status
Analyzed
Published
Nov 12, 2025, 6:15 PM
Modified
Nov 5, 2026, 2:10 PM