Vulnerability · Published Oct 9, 2026 · Assigned by GitHub_M

CVE-2026-62376Vikunja: Plaintext storage of password-reset/email-confirm tokens in database enables account takeover on DB read access

High 8.1

In plain English

A high-severity security flaw in vikunja from go-vikunja. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.3%top 79.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Vikunja is an open-source self-hosted task management platform. Versions prior to 2.4.0 store password-reset, email-confirmation, and account-deletion tokens in the `user_tokens` table in plaintext. If an attacker gains read access to the database through a backup leak, misconfigured storage, or SQL-level exposure, they can immediately use pending tokens to take over user accounts without knowing passwords. Version 2.4.0 fixes the issue.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	code.vikunja.io/api	2.4.0	GHSA-r6w9-259g-gwrv
Go	code.vikunja.io/api	no fix listed	GO-2026-6748

Affected products (as reported)

Vendor	Product	Versions
go-vikunja	vikunja	< 2.4.0

Weakness: CWE-312, CWE-916 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-r6w9-259g-gwrv x_refsource_CONFIRM
https://github.com/go-vikunja/vikunja/commit/00fd2c6155c01faae99be4226b931d8091fd6323 x_refsource_MISC
https://github.com/go-vikunja/vikunja/commit/3a0ea15d8c18ff960bc98ae39950fa7a14b0af7d x_refsource_MISC
https://github.com/go-vikunja/vikunja/commit/e31ea2de5040fa63bc97cf4df63bafed3bd9ad85 x_refsource_MISC
https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0 x_refsource_MISC