Vulnerability · Published Jul 6, 2026 · Assigned by VulnCheck
CVE-2026-59713Leantime - OIDC Login CSRF via Unconditional State Verification Stub
High 8.1
In plain English
A high-severity cross-site request forgery in Leantime from Leantime. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.2%top 85.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Leantime contains an OIDC login CSRF vulnerability in the verifyState() method that unconditionally returns true without validating state parameters. Attackers can craft malicious callback URLs with attacker-controlled authorization codes to perform session fixation, logging victims in as the attacker.
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
References
- GitHub Issue issue-tracking
- Product product
- Patch Commit patch
- https://www.vulncheck.com/advisories/leantime-oidc-login-csrf-via-unconditional-state-verification-stub third-party-advisory