Vulnerability · Published Aug 29, 2026 · Assigned by VulnCheck

CVE-2026-82469Rodauth before 2.47.0 Authentication Bypass via jwt_refresh

Medium 5.4

In plain English

A medium-severity security flaw in rodauth from jeremyevans. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.4%top 64.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Rodauth before 2.47.0 contains an authentication bypass vulnerability in the jwt_refresh route that issues new JWT access tokens without requiring a refresh token. Attackers can present an access token to the refresh route via non-POST methods to obtain a new valid access token, enabling indefinite account access with temporary token possession.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:14	ruby-rodauth	2.47.0-1	DEBIAN-CVE-2026-82469
Ubuntu:26.10	ruby-rodauth	no fix listed	UBUNTU-CVE-2026-82469

Affected products (as reported)

Vendor	Product	Versions
jeremyevans	rodauth	0 – before 2.47.0

Weakness: CWE-613 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Patch Commit patch
GitHub Security Advisory (GHSA-w4fg-qf56-62m2) vendor-advisory
https://github.com/jeremyevans/rodauth product
VulnCheck Advisory: Rodauth before 2.47.0 Authentication Bypass via jwt_refresh third-party-advisory