CVE-2025-27144
DoS in go-jose Parsing in github.com/go-jose/go-jose
Description
Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption (JWE), JSON Web Signature (JWS), and JSON Web Token (JWT) standards. In versions on the 4.x branch prior to version 4.0.5, when parsing compact JWS or JWE input, Go JOSE could use excessive memory. The code used strings.Split(token, ".") to split JWT tokens, which is vulnerable to excessive memory consumption when processing maliciously crafted tokens with a large number of `.` characters. An attacker could exploit this by sending numerous malformed tokens, leading to memory exhaustion and a Denial of Service. Version 4.0.5 fixes this issue. As a workaround, applications could pre-validate that payloads passed to Go JOSE do not contain an excessive number of `.` characters.
How to fix CVE-2025-27144
To remediate CVE-2025-27144, upgrade the affected package to a fixed version below.
- —upgrade to 4.0.5-1 or later
- —upgrade to 3.0.4 or later
- —no fix listed
- —upgrade to 3.0.4 or later
- —upgrade to 3.0.4 or later
- —upgrade to 4.0.5 or later
- —upgrade to 4.0.5 or later
- —no fix listed
Is CVE-2025-27144 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (8)
- from 0, < 4.0.5-1
- from 0, < 3.0.4
- from 0
- from 0, < 3.0.4
- from 0, < 3.0.4
- from 0, < 4.0.5
- from 0, < 4.0.5
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |