CVE-2015-9235
CRITICAL 9.8EPSS 8.7%
In jsonwebtoken node module before 4.2.2 it is possible for an attacker to bypass verification when a token digitally signed with an asymmetric key (RS/ES family) of algorithms but instead the attacker send a token digitally signed with a symmetric algorithm (HS* family).
- CVSS v3.0
- 9.8 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0
- 7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 8.65% chance of exploitation in the next 30 days, 95th percentile
- Published
- 2018-05-29
- Updated
- 2024-09-16
Proof-of-concept exploits (5)
- WinDyAlphA/CVE-2015-9235_JWT_key_confusion3★ · 2023-09-18
- aalex954/jwt-key-confusion-poc2★ · 2022-02-13
- achmadismail173/jwt_exploit5★ · 2025-07-28
- Nxvh1337/CVE-2015-9235_JWT_key_confusion
- tierChampion/POC_CVE-2015-9235