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Vulnerability Details :

CVE-2025-45765

Assigner-mitre

Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca

Published At-07 Aug, 2025 | 00:00

Updated At-12 Aug, 2025 | 14:10

ruby-jwt v3.0.0.beta1 was discovered to contain weak encryption. NOTE: the Supplier's perspective is "keysize is not something that is enforced by this library. Currently more recent versions of OpenSSL are enforcing some key sizes and those restrictions apply to the users of this gem also."

EPSS History

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▼Common Vulnerabilities and Exposures (CVE)

cve.org

Assigner:mitre

Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca

Published At:07 Aug, 2025 | 00:00

Updated At:12 Aug, 2025 | 14:10

▼CVE Numbering Authority (CNA)

Affected Products

Vendor

n/a

Product

n/a

Versions

Affected

Problem Types

Type	CWE ID	Description
text	N/A	n/a

Type: text

CWE ID: N/A

Description: n/a

References

Hyperlink	Resource
https://github.com/jwt/ruby-jwt/issues/668	N/A
https://gist.github.com/ZupeiNie/c621253068ce5b64911629534879e8f9	N/A

Hyperlink: https://github.com/jwt/ruby-jwt/issues/668

Resource: N/A

Hyperlink: https://gist.github.com/ZupeiNie/c621253068ce5b64911629534879e8f9

Resource: N/A

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

Problem Types

Type	CWE ID	Description
CWE	CWE-326	CWE-326 Inadequate Encryption Strength

Type: CWE

CWE ID: CWE-326

Description: CWE-326 Inadequate Encryption Strength

Metrics

Version	Base score	Base severity	Vector
3.1	9.1	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Version: 3.1

Base score: 9.1

Base severity: CRITICAL

Vector:

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Metrics Other Info

▼National Vulnerability Database (NVD)

nvd.nist.gov

Source:cve@mitre.org

Published At:07 Aug, 2025 | 21:15

Updated At:12 Aug, 2025 | 15:15

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	9.1	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Type: Secondary

Version: 3.1

Base score: 9.1

Base severity: CRITICAL

Vector:

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weaknesses

CWE ID	Type	Source
CWE-326	Secondary	134c704f-9b21-4f2e-91b3-4a467353bcc0

CWE ID: CWE-326

Type: Secondary

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

References

Hyperlink	Source	Resource
https://gist.github.com/ZupeiNie/c621253068ce5b64911629534879e8f9	cve@mitre.org	N/A
https://github.com/jwt/ruby-jwt/issues/668	cve@mitre.org	N/A

Hyperlink: https://gist.github.com/ZupeiNie/c621253068ce5b64911629534879e8f9

Source: cve@mitre.org

Resource: N/A

Hyperlink: https://github.com/jwt/ruby-jwt/issues/668

Source: cve@mitre.org

Resource: N/A

CVE-2025-45765

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Stakeholder-Specific Vulnerability Categorization (SSVC)

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