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TI-2026-42586 Aliases CVE-2026-59713GHSA-vwm8-rprj-29f7

Leantime - OIDC Login CSRF via Unconditional State Verification Stub

Priority LOW 39CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Tampering
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-352.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00234 14th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LeantimeLeantimeup to 3.4.4—No fix listedCNA
  • Leantime VendorLeantime Affected up to 3.4.4 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:leantime:leantime:*:*:*:*:*:*:*:*——Leantime
  • cpe:2.3:a:leantime:leantime:*:*:*:*:*:*:*:* Versions — — ·Leantime

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59713
  2. 2026-10-03 Alias added: GHSA-vwm8-rprj-29f7

References

Patch 1

Other 2

  • TI-2026-71921 Missing authorization in Leantime lets users create admin accounts CVSS 3.1HIGH 8.8
  • TI-2026-53555 Leantime JSON-RPC API contains a missing authorization vulnerability CVSS 3.1HIGH 8.8
  • TI-2024-18279 Leantime 3.0.6 is vulnerable to Cross Site Request Forgery (CSRF). CVSS 3.1HIGH 8.8
  • TI-2024-18354 Cross Site Scripting vulnerability in Leantime v3.0.6 allows attackers to execute… CVSS 3.1HIGH 7.6
  • TI-2026-62514 Leantime before 3.9.6 Unauthorized Plugin Installation via HTMX CVSS 4.0HIGH 7.1
  • TI-2026-47171 Leantime all versions prior to and 3.6.2 Broken Access Control via tickets.getMilestone JSON-RPC CVSS 4.0HIGH 7.1
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences