CVE-2018-0114
HIGH 7.5EPSS 42.7%
A vulnerability in the Cisco node-jose open source library before 0.11.0 could allow an unauthenticated, remote attacker to re-sign tokens using a key that is embedded within the token. The vulnerability is due to node-jose following the JSON Web Signature (JWS) standard for JSON Web Tokens (JWTs). This standard specifies that a JSON Web Key (JWK) representing a public key can be embedded within the header of a JWS. This public key is then trusted for verification. An attacker could exploit this by forging valid JWS objects by removing the original signature, adding a new public key to the header, and then signing the object using the (attacker-owned) private key associated with the public key embedded in that JWS header.
- CVSS v3.1
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS v3.1
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS v2.0
- 5.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N - EPSS
- 42.65% chance of exploitation in the next 30 days, 99th percentile
- Published
- 2018-01-04
- Updated
- 2024-12-02
Proof-of-concept exploits (14)
- zi0Black/POC-CVE-2018-011426★ · 2023-02-24
- Eremiel/CVE-2018-01142★ · 2021-01-03
- Logeirs/CVE-2018-01140★ · 2020-08-18
- Pandora-research/CVE-2018-0114-Exploit0★ · 2022-01-29
- Starry-lord/CVE-2018-01140★ · 2021-01-13
- achmadismail173/jwt_exploit5★ · 2025-07-28
- adityathebe/POC-CVE-2018-01141★ · 2021-02-21
- amr9k8/jwt-spoof-tool0★ · 2023-03-16
- j4k0m/CVE-2018-01144★ · 2021-09-04
- mmeza-developer/CVE-2018-01140★ · 2021-11-06
- n0m-d/CVE-2018-0114-Go0★ · 2025-12-06
- pinnace/burp-jwt-fuzzhelper-extension100★ · 2019-07-29
- scumdestroy/CVE-2018-01143★ · 2022-01-12
- sealldeveloper/CVE-2018-0114-PoC0★ · 2026-03-28