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Medium severity4.6NVD Advisory· Published Jun 1, 2026

CVE-2026-45284

CVE-2026-45284

Description

Nextcloud is an open source content collaboration platform. From version 1.3.6 to before version 8.4.0, an improper check allowed users that where provided by LDAP to still authenticate towards user OIDC after they where deleted. This issue has been patched in version 8.4.0.

Affected products

1

Patches

1
8e1789844d35

Merge pull request #1340 from nextcloud/fix/noid/ldap-deleted-check

https://github.com/nextcloud/user_oidcJulien VeyssierFeb 19, 2026via nvd-ref
commitPR #1340
1 file changed · +1 −1
  • lib/Service/LdapService.php+1 −1 modified
    @@ -33,7 +33,7 @@ public function isLDAPEnabled(): bool {
 	 * @throws \Psr\Container\NotFoundExceptionInterface
 	 */
 	public function isLdapDeletedUser(IUser $user): bool {
-		if ($this->isLDAPEnabled()) {
+		if (!$this->isLDAPEnabled()) {
 			return false;
 		}

Vulnerability mechanics

No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.

References

3

News mentions

0

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