SecuriTricks - CVE-2025-30204

Description

golang-jwt is a Go implementation of JSON Web Tokens. Prior to 5.2.2 and 4.5.2, the function parse.ParseUnverified splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in the face of a malicious request whose Authorization header consists of Bearer followed by many period characters, a call to that function incurs allocations to the tune of O(n) bytes (where n stands for the length of the function's argument), with a constant factor of about 16. This issue is fixed in 5.2.2 and 4.5.2.

Product(s) Impacted

Vendor	Product	Versions
Github	Golang-jwt	<5.2.2, <4.5.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-405

Asymmetric Resource Consumption (Amplification)

The product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary's influence is "asymmetric."

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	github	golang-jwt	<5.2.2	/	/	/	/	/	/	/
a	github	golang-jwt	<4.5.2	/	/	/	/	/	/	/

References

https://github.com/golang-jwt/jwt/commit/0951d184286dece21f73c85673fd308786ffe9c3

https://github.com/golang-jwt/jwt/security/advisories/GHSA-mh63-6h87-95cp

CVSS Score

7.5 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: HIGH

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

View Vector String

Timeline

Published: March 21, 2025, 10:15 p.m.
Last Modified: March 21, 2025, 10:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-advisories@github.com

CVE-2025-30204