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TI-2024-25203 Aliases CVE-2024-37886

Nextcloud user_oidc's ID4me does not validate signature or expiration

Priority LOW 24CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-347.

Summary

user_oidc app is an OpenID Connect user backend for Nextcloud. An attacker could potentially trick the app into accepting a request that is not signed by the correct server. It is recommended that the Nextcloud user_oidc app is upgraded to 1.3.5, 2.0.0, 3.0.0, 4.0.0 or 5.0.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0024 15th percentileScored 2026-11-07
Fix Fixed security-advisories (nextcloud): 1.3.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
nextcloudsecurity-advisoriesbefore 1.3.51.3.5Patch availableCNA
  • security-advisories Vendornextcloud Affected before 1.3.5 Fixed in 1.3.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:*before 1.3.5Vulnerablenextcloud
  • cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:* Versions before 1.3.5 Vulnerable ·nextcloud

Remediation

  • Fix · CNA security-advisories (nextcloud) Fixed in 1.3.5

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-37886

References

Patch 1

Advisory 1

Other 1

  • TI-2023-15378 Nextcloud user_oidc app is missing brute force protection CVSS 3.1CRITICAL 9.8
  • TI-2026-33084 Nextcloud: Wrong condition in the User OIDC app's LdapService allowed deleted LDAP users to authenticate CVSS 3.1HIGH 8.8
  • TI-2023-20847 user_oidc app stores client secret unencrypted in database CVSS 3.1HIGH 8.1
  • TI-2024-24824 Nextcloud user_oidc app's ID4me feature is available even when disabled CVSS 3.1MEDIUM 6.3
  • TI-2024-35183 Nextcloud User OIDC has an open redirection when logging in with User OIDC CVSS 3.1MEDIUM 6.1
  • TI-2026-33079 Nextcloud: Open Redirect in user_oidc login flow via protocol-relative URL bypass CVSS 3.1MEDIUM 6.1
See all 8 →

Sources

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