CVE-2018-1000539 is a medium-severity vulnerability affecting json-jwt versions 0.5.0 through 1.9.3, allowing an attacker to forge authentication tags in AES-GCM encrypted JSON Web Tokens due to improper cryptographic signature verification (CWE-347). This network-exploitable flaw could lead to unauthorized data modification (low integrity impact) without requiring user interaction or elevated privileges. While the vulnerability has a CVSS score of 5.3, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in the KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.5.0, < 1.9.4CPE matchmatch criteria | cpe:2.3:a:json-jwt_project:json-jwt:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.